Dyfyniad APA

Blyth, F. G. H. (1960). Geology for engineers (4th ed.). English language book society.

Dyfyniad Arddull Chicago

Blyth, F. G. H. Geology for Engineers. 4th ed. London: English language book society, 1960.

Dyfyniad MLA

Blyth, F. G. H. Geology for Engineers. 4th ed. English language book society, 1960.

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