APA引文

Robertson, R. G. (2012). Competitive struggle: America's western fur trading posts, 1764-1865 (2nd ed.). Caxton Press.

Chicago Style (17th ed.) Citation

Robertson, R. G. Competitive Struggle: America's Western Fur Trading Posts, 1764-1865. 2nd ed. Caldwell, Idaho: Caxton Press, 2012.

MLA引文

Robertson, R. G. Competitive Struggle: America's Western Fur Trading Posts, 1764-1865. 2nd ed. Caxton Press, 2012.

警告：這些引文格式不一定是100％准確.