Cita APA (7th ed.)
Hill, J. B. (1967). Botany: A textbook for colleges (4th ed.). McGraw-Hill.
Cita Chicago (17th ed.)
Hill, J. Ben. Botany: A Textbook for Colleges. 4th ed. New York: McGraw-Hill, 1967.
Cita MLA (9th ed.)
Hill, J. Ben. Botany: A Textbook for Colleges. 4th ed. McGraw-Hill, 1967.
Atenció: Aquestes cites poden no estar 100% correctes.