Dyfyniad APA

Spangler, M. (1982). Soil Engineering (4.). Harper and Raw Publishers.

Dyfyniad Arddull Chicago

Spangler, M.G. Soil Engineering. 4. London: Harper and Raw Publishers, 1982.

Dyfyniad MLA

Spangler, M.G. Soil Engineering. 4. Harper and Raw Publishers, 1982.

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