Herbert, D., & Herbert, D. (1982). Geography and the urban environment: Progress in research and applications. John Wiley & Sons.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHerbert, D.T, और D.T.;Johnston Herbert. Geography and the Urban Environment: Progress in Research and Applications. John Wiley & Sons, 1982.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHerbert, D.T, और D.T.;Johnston Herbert. Geography and the Urban Environment: Progress in Research and Applications. John Wiley & Sons, 1982.
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