Esau, K. (1977). Anatomy of seed plants (2nd ed.). John Wiley & Sons.
Cita Chicago (17th ed.)Esau, Katherine. Anatomy of Seed Plants. 2nd ed. New York: John Wiley & Sons, 1977.
Cita MLA (9th ed.)Esau, Katherine. Anatomy of Seed Plants. 2nd ed. John Wiley & Sons, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.