Παραπομπή APA

Walton, A. D., & Lewis, M. O. (1964). Foundation Directory (2nd ed.). Russell Sage Foundation.

Παραπομπή Chicago Style

Walton, Ann D., και Marianna O. Lewis. Foundation Directory. 2nd ed. New York: Russell Sage Foundation, 1964.

Παραπομπή MLA

Walton, Ann D., και Marianna O. Lewis. Foundation Directory. 2nd ed. Russell Sage Foundation, 1964.