Dirk van der Eijk. (1998). Phosphate fixation and the response of maize to fertilizer phosphate in Kenyan soils. The Netherland: Wageningen University.
Trích dẫn kiểu ChicagoDirk van der Eijk. Phosphate Fixation and the Response of Maize to Fertilizer Phosphate in Kenyan Soils. The Netherland: Wageningen University, 1998.
MLA引文Dirk van der Eijk. Phosphate Fixation and the Response of Maize to Fertilizer Phosphate in Kenyan Soils. The Netherland: Wageningen University, 1998.
警告：这些引文格式不一定是100％准确.