APA-viite

Swainson, W. (1834). Preliminary discourse on the study of natural history / by William Swainson. Cambridge University Press.

Chicago-tyylinen lähdeviittaus

Swainson, William. Preliminary Discourse on the Study of Natural History / by William Swainson. United States of America: Cambridge University Press, 1834.

MLA-viite

Swainson, William. Preliminary Discourse on the Study of Natural History / by William Swainson. Cambridge University Press, 1834.