Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.