Παραπομπή APA

Castro, A., Henríquez, C., & Bertsch, F. (2008). Nitrogen, phosphorus and potassium supply capacity in four organic amendments.

Παραπομπή Chicago Style

Castro, Andrina, Carlos Henríquez, και Floria Bertsch. Nitrogen, Phosphorus and Potassium Supply Capacity in Four Organic Amendments. 2008.

Παραπομπή MLA

Castro, Andrina, Carlos Henríquez, και Floria Bertsch. Nitrogen, Phosphorus and Potassium Supply Capacity in Four Organic Amendments. 2008.

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