APA引文

Clayton, G. E. (2001). Economics: Principles & Practices. McGraw - HillCompanies, Inc.

Trích dẫn kiểu Chicago

Clayton, Gary E. Economics: Principles & Practices. McGraw - HillCompanies, Inc, 2001.

MLA引文

Clayton, Gary E. Economics: Principles & Practices. McGraw - HillCompanies, Inc, 2001.

警告：这些引文格式不一定是100％准确.