Cita APA (7th ed.)
Stern, K. R. (1994). Introductory plant biology. WCB.
Cita Chicago (17th ed.)
Stern, Kingsley R. Introductory Plant Biology. Boulevard: WCB, 1994.
Cita MLA (9th ed.)
Stern, Kingsley R. Introductory Plant Biology. WCB, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.