(1977). Man and environment units [4-6]: Man's impact on environment etc. Open University.
Chicago Edition CitationMan and Environment Units [4-6]: Man's Impact on Environment Etc. Walton Hall: Open University, 1977.
MLA Edition CitationMan and Environment Units [4-6]: Man's Impact on Environment Etc. Open University, 1977.
Warning: These citations may not always be 100% accurate.