APA (7. basım) Alıntı

Williamson, H. F., & Smalley, O. A. (1957). Northwestern Mutual Life: A century of trusteeship. Northwestern University Press.

Chicago Style (17. basım) Atıf

Williamson, Harold Francis, ve Orange A. Smalley. Northwestern Mutual Life: A Century of Trusteeship. Evanston, Ill: Northwestern University Press, 1957.

MLA (9th ed.) Atıf

Williamson, Harold Francis, ve Orange A. Smalley. Northwestern Mutual Life: A Century of Trusteeship. Northwestern University Press, 1957.