Παραπομπή σε μορφή APA (7η εκδ.)

Burger, J., & Zappalorti, R. T. (2011). The northern pine snake (pituophis melanoleucus): Its life history, behavior and conservation. Nova Science Publishers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Burger, Joanna, και Robert T. Zappalorti. The Northern Pine Snake (pituophis Melanoleucus): Its Life History, Behavior and Conservation. Hauppauge, N.Y.: Nova Science Publishers, 2011.

Παραπομπή σε μορφή MLA (9th εκδ.)

Burger, Joanna, και Robert T. Zappalorti. The Northern Pine Snake (pituophis Melanoleucus): Its Life History, Behavior and Conservation. Nova Science Publishers, 2011.