APA (7. basım) Alıntı

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

Chicago Style (17. basım) Atıf

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

MLA (9th ed.) Atıf

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