Political and Economic Planning. (1955). World population and resources: A report. [Distributed by Allen & Unwin].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPolitical and Economic Planning. World Population and Resources: A Report. London: [Distributed by Allen & Unwin], 1955.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPolitical and Economic Planning. World Population and Resources: A Report. [Distributed by Allen & Unwin], 1955.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.