Dyfyniad APA

Shirlaw, D. (1962). Soil fertility and field methods of analysis: A guide for agricultural students and advisers, gardeners and horticulturalists. Cassell & company.

Dyfyniad Arddull Chicago

Shirlaw, D.W.Gilchrist. Soil Fertility and Field Methods of Analysis: A Guide for Agricultural Students and Advisers, Gardeners and Horticulturalists. London: Cassell & company, 1962.

Dyfyniad MLA

Shirlaw, D.W.Gilchrist. Soil Fertility and Field Methods of Analysis: A Guide for Agricultural Students and Advisers, Gardeners and Horticulturalists. Cassell & company, 1962.

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