Cita APA (7a ed.)

Guttman, B. S. (1999). Biology. WCB McGraw-Hill.

Cita Chicago Style (17a ed.)

Guttman, Burton S. Biology. Boston: WCB McGraw-Hill, 1999.

Cita MLA (9a ed.)

Guttman, Burton S. Biology. WCB McGraw-Hill, 1999.