APA

Benson P. a., North N. L. & Ring A. a. (1954). Real estate principles and practices. New York: Prentice-Hall.

Chicago

Benson Philip a, North Nelson L and Ring Alfred a. 1954. Real estate principles and practices. New York: Prentice-Hall.

Harvard

Benson P. a., North N. L. and Ring A. a. (1954). Real estate principles and practices. New York: Prentice-Hall.

MLA

Benson Philip a, North Nelson L and Ring Alfred a. Real estate principles and practices. New York: Prentice-Hall. 1954.