Peterson, R. T. (1956). A fiels guide to the birds (2ª ed.). Houghton Miffin Company.
芝加哥风格引文Peterson, Roger Tory. A Fiels Guide to the Birds. 2ª ed. Houghton Miffin Company, 1956.
MLA引文Peterson, Roger Tory. A Fiels Guide to the Birds. 2ª ed. Houghton Miffin Company, 1956.
警告：这些引文格式不一定是100％准确.