Nitrogen Workshop University of Exeter, ProQuest (Firm), & Hatch, D. J. (2004). Controlling nitrogen flows and losses. Wageningen Academic Publishers.

Nitrogen Workshop University of Exeter, ProQuest (Firm), and D. J. Hatch. Controlling Nitrogen Flows and Losses. Wageningen: Wageningen Academic Publishers, 2004.

Nitrogen Workshop University of Exeter, et al. Controlling Nitrogen Flows and Losses. Wageningen Academic Publishers, 2004.