APA引文

Byrns, R. (1987). Economics (3rd ed.). Scott,Foresman.

芝加哥风格引文

Byrns, Ralph. Economics. 3rd ed. Illinois: Scott,Foresman, 1987.

MLA引文

Byrns, Ralph. Economics. 3rd ed. Scott,Foresman, 1987.

警告：这些引文格式不一定是100％准确.