Cita APA (7th ed.)

Tivy, J. (1993). Biogeography: A study of plants in the ecosphere (3rd ed.). Longman Scientific & Technical.

Cita Chicago (17th ed.)

Tivy, Joy. Biogeography: A Study of Plants in the Ecosphere. 3rd ed. Burnt Mill, Harlow, Essex: Longman Scientific & Technical, 1993.

Cita MLA (9th ed.)

Tivy, Joy. Biogeography: A Study of Plants in the Ecosphere. 3rd ed. Longman Scientific & Technical, 1993.