Trích dẫn APA

J Ris. (1973). The establishment of fertilizer recommendations on the basis of soil tests. The Netherland: Instituut Voor Bodemvruchtbaarheid.

Trích dẫn kiểu Chicago

J Ris. The Establishment of Fertilizer Recommendations On the Basis of Soil Tests. The Netherland: Instituut Voor Bodemvruchtbaarheid, 1973.

Trích dẫn MLA

J Ris. The Establishment of Fertilizer Recommendations On the Basis of Soil Tests. The Netherland: Instituut Voor Bodemvruchtbaarheid, 1973.

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