Citazione Stile APA (7a Edizione)

Beek, J., & Frissel, M. (1973). Simulation of nitrogen behavior in soils. Centre for Agricultural Publishing and Documentation.

Citazione stile Chigago Style (17a edizione)

Beek, J., e M.J Frissel. Simulation of Nitrogen Behavior in Soils. Wageningen: Centre for Agricultural Publishing and Documentation, 1973.

Citatione MLA (9a ed.)

Beek, J., e M.J Frissel. Simulation of Nitrogen Behavior in Soils. Centre for Agricultural Publishing and Documentation, 1973.