APA

Underwood B. J., . (1949). Experimental psychology. New York: Appleton-Century-Crofts.

Chicago

Underwood Benton J, . 1949. Experimental psychology. New York: Appleton-Century-Crofts.

Harvard

Underwood B. J., . (1949). Experimental psychology. New York: Appleton-Century-Crofts.

MLA

Underwood Benton J, . Experimental psychology. New York: Appleton-Century-Crofts. 1949.