Cita APA (7th ed.)
Keulen, H. v., & Wolf, J. (1986). Modelling of agricultural production: Weather, soils, and crops. Pudoc.
Cita Chicago (17th ed.)
Keulen, H. van, i J. Wolf. Modelling of Agricultural Production: Weather, Soils, and Crops. Wageningen, Netherlands: Pudoc, 1986.
Cita MLA (9th ed.)
Keulen, H. van, i J. Wolf. Modelling of Agricultural Production: Weather, Soils, and Crops. Pudoc, 1986.
Atenció: Aquestes cites poden no estar 100% correctes.