Gaerlan, Josefina E. Principles of mental hygiene / Josefina E. Gaerlan, Dolores M. Zaide. - 2nd edition. - Quezon City : Ken Inc, c1975. - xi, 183 pages : Illustration ; 22 cm. Includes bibliography (p.179-182. Subjects--Topical Terms: Mental hygiene. Dewey Class. No.: FIL 131 G119 1975