Cita APA (7th ed.)

Huggett, R. J. (1997). Environmental Change: The evolving ecosphere. Routledge.

Cita Chicago (17th ed.)

Huggett, Richard John. Environmental Change: The Evolving Ecosphere. New York: Routledge, 1997.

Cita MLA (9th ed.)

Huggett, Richard John. Environmental Change: The Evolving Ecosphere. Routledge, 1997.