Dyfyniad APA

FITZPATRICK, E. (1983). Soil: Their formation, classification and distribution. Longman.

Dyfyniad Arddull Chicago

FITZPATRICK, E.A. Soil: Their Formation, Classification and Distribution. London: Longman, 1983.

Dyfyniad MLA

FITZPATRICK, E.A. Soil: Their Formation, Classification and Distribution. Longman, 1983.

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