APA način citiranja (7. izdanje)

Eckholm, E. P. (1978). Disappearing species: The social challenge. Worldwatch Institute.

Čikaški stil citiranja (17. izdanje)

Eckholm, Erik P. Disappearing Species: The Social Challenge. [Washington]: Worldwatch Institute, 1978.

MLA način citiranja (8. izdanje)

Eckholm, Erik P. Disappearing Species: The Social Challenge. Worldwatch Institute, 1978.