Παραπομπή σε μορφή APA (7η εκδ.)

Parkes, A. S. S., & Dennis, F. (1993). Backlash: A biologist looks at problems of population and the environment. [Parkes Foundation].

Παραπομπή σε μορφή Chicago (17η εκδ.)

Parkes, Alan Sterling Sir, και Frances Dennis. Backlash: A Biologist Looks at Problems of Population and the Environment. [Cambridge]: [Parkes Foundation], 1993.

Παραπομπή σε μορφή MLA (9th εκδ.)

Parkes, Alan Sterling Sir, και Frances Dennis. Backlash: A Biologist Looks at Problems of Population and the Environment. [Parkes Foundation], 1993.