APA引文

Keulen, H. V., & Wolf, J. (1986). Modelling of agricultural production: Weather, soils and crops /c�. van Keulen and J. Wolf. Pudoc.

Chicago Style (17th ed.) Citation

Keulen, H. Van, and J. Wolf. Modelling of Agricultural Production: Weather, Soils and Crops /c�. Van Keulen and J. Wolf. Wageningen, The Netherlands: Pudoc, 1986.

MLA引文

Keulen, H. Van, and J. Wolf. Modelling of Agricultural Production: Weather, Soils and Crops /c�. Van Keulen and J. Wolf. Pudoc, 1986.