Cita APA (7th ed.)

Dupre, B., Gardiner, B., & Moore, P. (1992). The Guinness encyclopedia of the living world. Guinness Publishing Ltd.

Cita Chicago (17th ed.)

Dupre, Ben, Brian Gardiner, i Peter Moore. The Guinness Encyclopedia of the Living World. Enfield, Middlesex, England: Guinness Publishing Ltd, 1992.

Cita MLA (9th ed.)

Dupre, Ben, et al. The Guinness Encyclopedia of the Living World. Guinness Publishing Ltd, 1992.