Cita APA (7a ed.)

Groot, J., de Willingen, P., & Verberne, E. (1991). Nitrogen turnover in the soil-crop system (1st edition.). Kluwer.

Cita Chicago Style (17a ed.)

Groot, J.J.R, P. de Willingen, y E.L.J Verberne. Nitrogen Turnover in the Soil-crop System. 1st edition. London: Kluwer, 1991.

Cita MLA (8a ed.)

Groot, J.J.R, et al. Nitrogen Turnover in the Soil-crop System. 1st edition. Kluwer, 1991.