Παραπομπή σε μορφή APA (7η εκδ.)

Bigornia, M. L., & Abrera , J. (1983). Kain, kumain, kinain: Isang halimbawa ng "food chain" (2nd ed.). Children's Communication Center.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Bigornia, Mike L., και Jess Abrera. Kain, Kumain, Kinain: Isang Halimbawa Ng "Food Chain". 2nd ed. Quezon City: Children's Communication Center, 1983.

Παραπομπή σε μορφή MLA (9th εκδ.)

Bigornia, Mike L., και Jess Abrera. Kain, Kumain, Kinain: Isang Halimbawa Ng "Food Chain". 2nd ed. Children's Communication Center, 1983.