APA (7th ed.) Citation

Fellows, B. J. (1969). The discrimination process and development International series of monographs on experimental psychology.

Chicago Style (17th ed.) Citation

Fellows, Brian J. "The Discrimination Process and Development." International Series of Monographs on Experimental Psychology 1969.

MLA (8th ed.) Citation

Fellows, Brian J. "The Discrimination Process and Development." International Series of Monographs on Experimental Psychology, 1969.