APA引文

Petrson, R. T. (1963). birds. Time-Life Books.

Chicago Edition Citation

Petrson, Roger Tory. Birds. New York: Time-Life Books, 1963.

MLA引文

Petrson, Roger Tory. Birds. Time-Life Books, 1963.

警告：這些引文格式不一定是100％准確.