Dyfyniad APA

Nash, H., & McCall, G. J. H. (1995). Ground Water Quality. Chapman.

Dyfyniad Arddull Chicago

Nash, H., and G J H. McCall. Ground Water Quality. London: Chapman, 1995.

Dyfyniad MLA

Nash, H., and G J H. McCall. Ground Water Quality. Chapman, 1995.

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