APA (7th ed.) Citation

Swainson, W. (1834). A preliminary discourse on the study of natural history. Longman [u.a.].

Chicago Style (17th ed.) Citation

Swainson, William. A Preliminary Discourse on the Study of Natural History. London: Longman [u.a.], 1834.

MLA (9th ed.) Citation

Swainson, William. A Preliminary Discourse on the Study of Natural History. Longman [u.a.], 1834.

Warning: These citations may not always be 100% accurate.