APA (7e ed.) Bronvermelding

Haswell, W. A., & Parker, T. J. (1897). A text book of zoology. Macmillan.

Chicago (17e ed.) Bronvermelding

Haswell, William A., en T. Jeffery Parker. A Text Book of Zoology. London: Macmillan, 1897.

MLA (9e ed.) Bronvermelding

Haswell, William A., en T. Jeffery Parker. A Text Book of Zoology. Macmillan, 1897.