APA (7th ed.) Citation

Barbour, T. (1946). A naturalist's scrapbook. Harvard university press.

Chicago Style (17th ed.) Citation

Barbour, Thomas. A Naturalist's Scrapbook. Cambridge: Harvard university press, 1946.

MLA (9th ed.) Citation

Barbour, Thomas. A Naturalist's Scrapbook. Harvard university press, 1946.