APA (7e ed.) Bronvermelding

Orians, G. H. (1969). The study of life: An introduction to biology. Allyn and Bacon.

Chicago (17e ed.) Bronvermelding

Orians, Gordon H. The Study of Life: An Introduction to Biology. Boston: Allyn and Bacon, 1969.

MLA (9e ed.) Bronvermelding

Orians, Gordon H. The Study of Life: An Introduction to Biology. Allyn and Bacon, 1969.