Παραπομπή σε μορφή APA (7η εκδ.)

Simpas, C. S. (1971). Demographic characteristics and problem areas of U.P. College of Agriculture freshmen. s.n.].

Παραπομπή σε μορφή Chicago (17η εκδ.)

Simpas, Carmencita S. Demographic Characteristics and Problem Areas of U.P. College of Agriculture Freshmen. [Quezon City: s.n.], 1971.

Παραπομπή σε μορφή MLA (9th εκδ.)

Simpas, Carmencita S. Demographic Characteristics and Problem Areas of U.P. College of Agriculture Freshmen. s.n.], 1971.