Gaerlan, Josefina E. Principles of mental hygiene / Josefina E. Gaerlan, Delia A. Limpingco, Geraldine Tria. - 4th edition. - Quezon City : Ken Incorporated, 1998. - 135 p. : black and white illustrations ; 22 cm., paperback. Includes glossary, and index. ISBN: 9718558349 Subjects--Topical Terms: Mental hygiene.Mental health--Social aspects. Dewey Class. No.: FIL 362.2 G128p 1998