Cita APA (7th ed.)

Comstock, A. B. (1941). Handbook of nature-study QH53 .C7. Comstock Publishing.

Cita Chicago (17th ed.)

Comstock, Anna Botsford. Handbook of Nature-study QH53 .C7. Ithaca, New York: Comstock Publishing, 1941.

Cita MLA (9th ed.)

Comstock, Anna Botsford. Handbook of Nature-study QH53 .C7. Comstock Publishing, 1941.