Gregorio, Herman C. <br/><br/>School administration and supervision / by Herman C. Gregorio, Ph.D.  - Revised edition.  - Quezon City :  Garotech Publishing,  [1961].  copyright 1961  - xiv, 550 pages ;  22 cm <br/><br/> Includes index. <br/><br/>Gregorio, H. C. (1961). School administrations and supervision. (Rev. ed.). Quezon City: Garotech Publishing. <br/><br/><label>ISBN: </label>9-71-871109-0 <br/><br/><label>Subjects--Topical Terms: </label><br/>School management and organization<br/><br/><label>LC Class. No.: </label>LB 2955   / .G861 1961