(1992). The world environment 1972-1992: Two decades of challenge. London: Chapman and Hall.
Trích dẫn kiểu ChicagoThe World Environment 1972-1992: Two Decades of Challenge. London: Chapman and Hall, 1992.
MLA CitationThe World Environment 1972-1992: Two Decades of Challenge. London: Chapman and Hall, 1992.
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