Dyfyniad APA

Johnson, W. H. (1962). This is life: Essays in modern biology. Holt, Rinehart and Winston.

Dyfyniad Arddull Chicago

Johnson, Willis H. This Is Life: Essays in Modern Biology. New York: Holt, Rinehart and Winston, 1962.

Dyfyniad MLA

Johnson, Willis H. This Is Life: Essays in Modern Biology. Holt, Rinehart and Winston, 1962.

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