The provisions of any code may be incorporated in a county resolution by reference and shall be as much a part of the resolution as if the same had been set out in full therein when the resolution has been passed by the board of county commissioners in the manner provided by law and it is published and copies of said code are filed and marked as set forth in Kan. Stat. Ann. § 12-3304. Any county proposing to adopt or incorporate the provisions of any code under the provisions of this act shall give notice thereof by publication once in the official county newspaper. Such notice shall identify the code or provisions proposed to be adopted and that area of the county in which the same will be applied and fix a time for the holding of a public hearing before the board of county commissioners upon the same. Any section, article, chapter, part or portion of such code not incorporated shall be clearly and specifically described by the incorporating resolutions and declared to be omitted and any provisions changing or adding to the incorporated provisions shall be stated in full and published as a part of the resolution. Instead of incorporating with omissions, the incorporating resolution may designate specifically the sections, articles, chapters, parts or portions of the code to be incorporated. No such resolution shall be deemed to have incorporated therein any code or part thereof unless the same shall be clearly described in the resolution by name or title, and the resolution contain the name or title of the person, association, agency or other organization which prepared, compiled, published or promulgated the same, the year, edition of the work and the statute number or other sufficiently identifying description. The amendment of any code or the publication of any revision by the person or organization sponsoring the same shall not affect the incorporating resolution but such incorporating resolution shall continue in effect until it is repealed or amended or a later code is incorporated by reference. Any statute or section thereof or any state regulation or portion thereof which has been incorporated by reference and which is amended by the legislature or changed by the issuing state officer, board or agency, shall cease to be effective until and unless incorporated by amendment of the incorporating resolution or the passage of another incorporating resolution. Any part of a code adopted pursuant to the provisions of this section may be made applicable, by resolution, either to all unincorporated portions of the county or to any area of the county outside of but within three (3) miles of the nearest point of the corporate limits of any city. The resolution by which any such codes are adopted shall clearly specify the portions of the code which are applicable to the territory within three (3) miles of the corporate limits of a city and which parts of said code are applicable to the remaining unincorporated portions of the county. The county may itself enforce any such codes or may contract with any city for the enforcement of codes in the territory surrounding such city.