Cita APA (7th ed.)

Bold, H. C. (1968). The plant kingdom (2nd ed.). Prentice-Hall.

Cita Chicago (17th ed.)

Bold, Harold C. The Plant Kingdom. 2nd ed. New Delhi: Prentice-Hall, 1968.

Cita MLA (9th ed.)

Bold, Harold C. The Plant Kingdom. 2nd ed. Prentice-Hall, 1968.