APA (7th ed.) Citation

Gallon, J. R., & Chaplin, A. E. (1987). An introduction to nitrogen fixation. Cassell Educational.

Chicago Style (17th ed.) Citation

Gallon, J. R., and Alan E. Chaplin. An Introduction to Nitrogen Fixation. London: Cassell Educational, 1987.

MLA (9th ed.) Citation

Gallon, J. R., and Alan E. Chaplin. An Introduction to Nitrogen Fixation. Cassell Educational, 1987.

Warning: These citations may not always be 100% accurate.