Citazione Stile APA (7a Edizione)

Gregorio, H. C., & Gregorio, C. M. (1979). Philosophy of education in Philippine setting. R.P. Garcia Publishing.

Citazione stile Chigago Style (17a edizione)

Gregorio, Herman Cruz, e Cornelia M. Gregorio. Philosophy of Education in Philippine Setting. Quezon City: R.P. Garcia Publishing, 1979.

Citatione MLA (9a ed.)

Gregorio, Herman Cruz, e Cornelia M. Gregorio. Philosophy of Education in Philippine Setting. R.P. Garcia Publishing, 1979.