Cita APA (7a ed.)

Duffy, O. (1854). Northern wilds. Stringer & Townsend.

Cita Chicago Style (17a ed.)

Duffy, Owen. Northern Wilds. New York: Stringer & Townsend, 1854.

Cita MLA (8a ed.)

Duffy, Owen. Northern Wilds. Stringer & Townsend, 1854.