Dyfyniad APA

Russell, J. E. (1912). Soil conditions and plant growth. Longmans, green & co.

Dyfyniad Arddull Chicago

Russell, John E. Soil Conditions and Plant Growth. London: Longmans, green & co, 1912.

Dyfyniad MLA

Russell, John E. Soil Conditions and Plant Growth. Longmans, green & co, 1912.

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