APA引文

Berkin, C. (1991). America: Yesterday and today. Scott,Foresman.

芝加哥风格引文

Berkin, Carol. America: Yesterday and Today. Illinois: Scott,Foresman, 1991.

MLA引文

Berkin, Carol. America: Yesterday and Today. Scott,Foresman, 1991.

警告：这些引文格式不一定是100％准确.