Cita APA (7a ed.)

Garrison, G. P. (1968). Westward extension: 1841-1850. J. & J. Harper.

Cita Chicago Style (17a ed.)

Garrison, George Pierce. Westward Extension: 1841-1850. New York: J. & J. Harper, 1968.

Cita MLA (9a ed.)

Garrison, George Pierce. Westward Extension: 1841-1850. J. & J. Harper, 1968.