APA

Bartley S. H., . (1958). Principles of perception. New York: Harper.

Chicago

Bartley S Howard, . 1958. Principles of perception. New York: Harper.

Harvard

Bartley S. H., . (1958). Principles of perception. New York: Harper.

MLA

Bartley S Howard, . Principles of perception. New York: Harper. 1958.