APA (7th ed.) Citation

Giller, K. E. (2001). Nitrogen fixation in tropical cropping systems (2nd ed.). CABI Pub..

Chicago Style (17th ed.) Citation

Giller, K. E. Nitrogen Fixation in Tropical Cropping Systems. 2nd ed. Wallingford, Oxon, UK ; New York, NY, USA: CABI Pub., 2001.

MLA (9th ed.) Citation

Giller, K. E. Nitrogen Fixation in Tropical Cropping Systems. 2nd ed. CABI Pub., 2001.