Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.