(2012). An INTRODUCTION to physical geography and the environment. Pearson.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAn INTRODUCTION to Physical Geography and the Environment. Pearson, 2012.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAn INTRODUCTION to Physical Geography and the Environment. Pearson, 2012.
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