Citazione Stile APA (7a Edizione)

Carballo, J. L. O. (1983). The values and attitudes of selected college students on some topics relevant to human population. UP SEC.

Citazione stile Chigago Style (17a edizione)

Carballo, Jose Luis O. The Values and Attitudes of Selected College Students on Some Topics Relevant to Human Population. Quezon City: UP SEC, 1983.

Citatione MLA (9a ed.)

Carballo, Jose Luis O. The Values and Attitudes of Selected College Students on Some Topics Relevant to Human Population. UP SEC, 1983.