APA引文

McGowen, A. (1973). The extraction of free gold. H. G. Carson Enterprises.

Chicago Style (17th ed.) Citation

McGowen, Al. The Extraction of Free Gold. Boulder, Colo.: H. G. Carson Enterprises, 1973.

MLA引文

McGowen, Al. The Extraction of Free Gold. H. G. Carson Enterprises, 1973.

警告：這些引文格式不一定是100％准確.