Dyfyniad APA

Orians, G. H. (1973). The Study of Life: An Introduction to Biology. Boston: Allyn and Bacon.

Dyfyniad Arddull Chicago

Orians, Gordon H. The Study of Life: An Introduction to Biology. Boston: Allyn and Bacon, 1973.

Dyfyniad MLA

Orians, Gordon H. The Study of Life: An Introduction to Biology. Boston: Allyn and Bacon, 1973.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.