Παραπομπή σε μορφή APA (7η εκδ.)

Villegas, V. E. (1965). Types and breeds of farm animals, how to judge and select them. Philippine Education.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Villegas, Valente Estrada. Types and Breeds of Farm Animals, How to Judge and Select Them. Manila: Philippine Education, 1965.

Παραπομπή σε μορφή MLA (9th εκδ.)

Villegas, Valente Estrada. Types and Breeds of Farm Animals, How to Judge and Select Them. Philippine Education, 1965.