Section 13. Said departments shall acquire and have on hand copies of current booklets and other printed matter pertaining to the statutory rights of veterans provided under state and federal laws. They may call at any time upon any department, board, division or commission of the commonwealth for such assistance as may be necessary in carrying out their functions. They shall also work in close coordination with existing federal agencies established for the aid of such veterans, and they shall enlist the support of hospitals within their respective communities or districts for carrying out the purposes of sections ten to fourteen, inclusive.