APA (7. basım) Alıntı

Gacelo, E. P. (2012). Principles of teaching 1. C & E Publishing, Inc.

Chicago Style (17. basım) Atıf

Gacelo, Ester Paunlagui. Principles of Teaching 1. Quezon City: C & E Publishing, Inc, 2012.

MLA (9th ed.) Atıf

Gacelo, Ester Paunlagui. Principles of Teaching 1. C & E Publishing, Inc, 2012.