Cita APA (7th ed.)

OToole, C. (1990). Insects and spiders: Encyclopedia of the animal world. Facts on File.

Cita Chicago (17th ed.)

OToole, Christopher. Insects and Spiders: Encyclopedia of the Animal World. New York: Facts on File, 1990.

Cita MLA (9th ed.)

OToole, Christopher. Insects and Spiders: Encyclopedia of the Animal World. Facts on File, 1990.