APA-referens

Dirk van der Eijk. (1998). Phosphate fixation and the response of maize to fertilizer phosphate in Kenyan soils. The Netherland: Wageningen University.

Chicago-stil citat

Dirk van der Eijk. Phosphate Fixation and the Response of Maize to Fertilizer Phosphate in Kenyan Soils. The Netherland: Wageningen University, 1998.

MLA-referens

Dirk van der Eijk. Phosphate Fixation and the Response of Maize to Fertilizer Phosphate in Kenyan Soils. The Netherland: Wageningen University, 1998.

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