APA (7th ed.) Citation

Darwin, C., & Wallace, J. (1998). The Origin Of Species. Wordsworth Editions Limited.

Chicago Style (17th ed.) Citation

Darwin, Charles, and Jeff Wallace. The Origin Of Species. Hertfordshire: Wordsworth Editions Limited, 1998.

MLA (9th ed.) Citation

Darwin, Charles, and Jeff Wallace. The Origin Of Species. Wordsworth Editions Limited, 1998.