APA引文

Opperman, H. (2003). A birder's guide to Washington. American Birding Association.

Chicago Style (17th ed.) Citation

Opperman, Hal. A Birder's Guide to Washington. Colorado Springs, Colo.: American Birding Association, 2003.

MLA引文

Opperman, Hal. A Birder's Guide to Washington. American Birding Association, 2003.

警告：這些引文格式不一定是100％准確.