APA引文

Gale Research Company. (1987). Research Centers directory. Gale.

Chicago Style (17th ed.) Citation

Gale Research Company. Research Centers Directory. Detroit, Mich.: Gale, 1987.

MLA引文

Gale Research Company. Research Centers Directory. Gale, 1987.

警告：這些引文格式不一定是100％准確.