APA (7th ed.) Citation

Gould, S. J. (1981). Ever since Darwin: Reflections in natural history (Reprint.). Penguin Books.

Chicago Style (17th ed.) Citation

Gould, Stephen Jay. Ever Since Darwin: Reflections in Natural History. Reprint. Harmondsworth, Middlesex: Penguin Books, 1981.

MLA (9th ed.) Citation

Gould, Stephen Jay. Ever Since Darwin: Reflections in Natural History. Reprint. Penguin Books, 1981.