Alerstam, T. (1976). Bird migration in relation to wind and topography.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAlerstam, Thomas. Bird Migration in Relation to Wind and Topography. 1976.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAlerstam, Thomas. Bird Migration in Relation to Wind and Topography. 1976.
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