APA način citiranja

H. May, R. (2021). Alexander F. Skutch: Ornithologist, philosopher, naturalist, and conservationist.

Čikaški stil citiranja

H. May, Roy. Alexander F. Skutch: Ornithologist, Philosopher, Naturalist, and Conservationist. 2021.

MLA način citiranja

H. May, Roy. Alexander F. Skutch: Ornithologist, Philosopher, Naturalist, and Conservationist. 2021.

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