Dyfyniad APA

Moeller, D. W. (2011). Environmental health (4th ed.). Harvard University Press.

Dyfyniad Arddull Chicago

Moeller, Dade W. Environmental Health. 4th ed. Cambridge: Harvard University Press, 2011.

Dyfyniad MLA

Moeller, Dade W. Environmental Health. 4th ed. Harvard University Press, 2011.

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