Aquino, Gaudencio V.  author <br/><br/>Principles and methods of effective teaching /  Gaudencio V. Aquino ‡  - Metro Manila :  National Book Store,  [date of publication not identified].  © 1988  - viii, 627 p.  col. ill.; 22 cm. <br/><br/><label>ISBN: </label>9710831887 <br/><br/><label>Subjects--Topical Terms: </label><br/>Education<br/><br/><label>LC Class. No.: </label>LB1731  / .A56 1998