APA引文

Credland, I. R. (1972). Business economics. Butterworths.

芝加哥风格引文

Credland, Ian R. Business Economics. London: Butterworths, 1972.

MLA引文

Credland, Ian R. Business Economics. Butterworths, 1972.

警告：这些引文格式不一定是100％准确.