Dyfyniad APA

Pearson, L. C. (1967). Principles of agronomy. Reinholdpublishing Corporation.

Dyfyniad Arddull Chicago

Pearson, Lorentz C. Principles of Agronomy. Newyork: Reinholdpublishing Corporation, 1967.

Dyfyniad MLA

Pearson, Lorentz C. Principles of Agronomy. Reinholdpublishing Corporation, 1967.

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