APA引文

Frantzich, S. (1982). Presidential popularity in America. American Political Science Association.

Chicago Style (17th ed.) Citation

Frantzich, Stephen. Presidential Popularity in America. Washington, D.C.: American Political Science Association, 1982.

MLA引文

Frantzich, Stephen. Presidential Popularity in America. American Political Science Association, 1982.

警告：這些引文格式不一定是100％准確.