APA引文

Christensen, J. R. (1981). A field guide to the butterflies of the Pacific Northwest. University Press of Idaho.

Chicago Style (17th ed.) Citation

Christensen, James R. A Field Guide to the Butterflies of the Pacific Northwest. Moscow, Idaho: University Press of Idaho, 1981.

MLA引文

Christensen, James R. A Field Guide to the Butterflies of the Pacific Northwest. University Press of Idaho, 1981.

警告：這些引文格式不一定是100％准確.