APA引文

Guthrie, A. B., Jr., & Petersen, D. (1988). Big sky, fair land: The environmental essays of A.B. Guthrie, Jr. Northland Press.

Chicago Style (17th ed.) Citation

Guthrie, A. B., Jr., and David Petersen. Big Sky, Fair Land: The Environmental Essays of A.B. Guthrie, Jr. [Flagstaff, Ariz.]: Northland Press, 1988.

MLA引文

Guthrie, A. B., Jr., and David Petersen. Big Sky, Fair Land: The Environmental Essays of A.B. Guthrie, Jr. Northland Press, 1988.

警告：這些引文格式不一定是100％准確.