Citação norma APA

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

Citação norma Chicago

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

Citação norma MLA

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

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.