Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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