Cita APA (7th ed.)

Hendrickson, H. T. (1981). Essential Biology. Harper & Row, Publishers, Inc.

Cita Chicago (17th ed.)

Hendrickson, Herbert T. Essential Biology. New York: Harper & Row, Publishers, Inc, 1981.

Cita MLA (9th ed.)

Hendrickson, Herbert T. Essential Biology. Harper & Row, Publishers, Inc, 1981.