APA-Zitierstil (7. Ausg.)

Gregorio, H. C. (1976). Principles and methods of teaching (Revised ed.). Garotech Pub.

Chicago-Zitierstil (17. Ausg.)

Gregorio, Herman C. Principles and Methods of Teaching. Revised ed. Quezon City: Garotech Pub, 1976.

MLA-Zitierstil (9. Ausg.)

Gregorio, Herman C. Principles and Methods of Teaching. Revised ed. Garotech Pub, 1976.