APA引文

B.Walstad William. (2006). Study Guide to accompany Microeconomics. American: McGraw -Hill.

Trích dẫn kiểu Chicago

B.Walstad William. Study Guide to Accompany Microeconomics. American: McGraw -Hill, 2006.

MLA引文

B.Walstad William. Study Guide to Accompany Microeconomics. American: McGraw -Hill, 2006.

警告：這些引文格式不一定是100％准確.