Cita APA (7a ed.)
Orians, G. H. (1969). The study of life: An intoduction to biology. Ally and Bacon, Inc..
Cita Chicago Style (17a ed.)
Orians, Gordon H. The Study of Life: An Intoduction to Biology. Boston: Ally and Bacon, Inc., 1969.
Cita MLA (9a ed.)
Orians, Gordon H. The Study of Life: An Intoduction to Biology. Ally and Bacon, Inc., 1969.
Precaución: Estas citas no son 100% exactas.