APA (7e ed.) Bronvermelding

Ray, J. D. J., & Nelson, G. E. (1971). What a piece of work is man: Introductory readings in biology. Little.

Chicago (17e ed.) Bronvermelding

Ray, James D. Jr, en Gideon E. Nelson. What a Piece of Work Is Man: Introductory Readings in Biology. Boston: Little, 1971.

MLA (9e ed.) Bronvermelding

Ray, James D. Jr, en Gideon E. Nelson. What a Piece of Work Is Man: Introductory Readings in Biology. Little, 1971.