Dyfyniad APA

Bell, M. M. (2012). Invitation to Environmental Sociology (4th.). Sage Publication.

Dyfyniad Arddull Chicago

Bell, Michael M. Invitation to Environmental Sociology. 4th. Sage Publication, 2012.

Dyfyniad MLA

Bell, Michael M. Invitation to Environmental Sociology. 4th. Sage Publication, 2012.

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