Jaap Schroder. (1998). Towards improved nitrogen management in silage maize production on sandy soils. The Netherland: Wageningen University.
シカゴスタイル引用形Jaap Schroder. Towards Improved Nitrogen Management in Silage Maize Production On Sandy Soils. The Netherland: Wageningen University, 1998.
MLA引用形式Jaap Schroder. Towards Improved Nitrogen Management in Silage Maize Production On Sandy Soils. The Netherland: Wageningen University, 1998.
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