APA (7th ed.) Citation

Bartley, S. H. (1969). Principles of perception (2nd ed.). Harper.

Chicago Style (17th ed.) Citation

Bartley, S. Howard. Principles of Perception. 2nd ed. London: Harper, 1969.

MLA (9th ed.) Citation

Bartley, S. Howard. Principles of Perception. 2nd ed. Harper, 1969.

Warning: These citations may not always be 100% accurate.