APA (7th ed.) Citation

Agassiz, L. (1863). Methods of study in natural history. Ticknor and Fields.

Chicago Style (17th ed.) Citation

Agassiz, Louis. Methods of Study in Natural History. Boston: Ticknor and Fields, 1863.

MLA (8th ed.) Citation

Agassiz, Louis. Methods of Study in Natural History. Ticknor and Fields, 1863.