Cita APA (7th ed.)

Bold, H. C. (1970). The plant kingdom (3rd ed.). Prentice-Hall.

Cita Chicago (17th ed.)

Bold, Harold Charles. The Plant Kingdom. 3rd ed. Englewood Cliffs, New Jersey: Prentice-Hall, 1970.

Cita MLA (9th ed.)

Bold, Harold Charles. The Plant Kingdom. 3rd ed. Prentice-Hall, 1970.