National Academy of Sciences. (1973). Geographical Perspectives and urban problems. [S.l.]: [s.n.].
Chicago Style CitationNational Academy of Sciences. Geographical Perspectives and Urban Problems. [S.l.]: [s.n.], 1973.
MLA CitationNational Academy of Sciences. Geographical Perspectives and Urban Problems. [S.l.]: [s.n.], 1973.
Warning: These citations may not always be 100% accurate.