Deismireacht APA

Knowler, F., & Watkin, J. (1960). Practical Course in Agricultural Chemistry (2.). Macmillan and Company Ltd.

Chicago Edition Citation

Knowler, Frank, and J.Elphin Watkin. Practical Course in Agricultural Chemistry. 2. London: Macmillan and Company Ltd, 1960.

Deismireacht MLA

Knowler, Frank, and J.Elphin Watkin. Practical Course in Agricultural Chemistry. 2. Macmillan and Company Ltd, 1960.

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