APA (7th ed.) Citation

C.A.B Int, Addiscott, T., Powlson, D., & Whitmore, A. (1992). Farming, fertilizers and the nitrate problem. C.A.B Int.

Chicago Style (17th ed.) Citation

C.A.B Int, T. Addiscott, D. Powlson, and A. Whitmore. Farming, Fertilizers and the Nitrate Problem. Wallingford: C.A.B Int, 1992.

MLA (8th ed.) Citation

C.A.B Int, et al. Farming, Fertilizers and the Nitrate Problem. C.A.B Int, 1992.