Gaya APA

Elkins, S, M. (-1968). Slavery, a problem in American Institutional and intellectual life, 2nd ed. Tjet.pertama 1959. . Chicago: UP.

Gaya MLA

Elkins, Stanley, M.. "Slavery, a problem in American Institutional and intellectual life, 2nd ed. Tjet.pertama 1959. ". Chicago: UP, -1968. Buku.