Gould, Geraldine N. How to organize and maintain the library picture/pamphlet file / Geraldine N. Gould and Ithmer C. Wolfe. - Dobbs Ferry, N.Y. : Oceana Publications, 1968. - xi, 146 p. : ill. ; 23 cm. Subjects--Topical Terms: Vertical files (Libraries) Dewey Class. No.: 025.17