Colombo, B., & Colombo, B. (1996). Resources and population: Natural, institutional and demographic dimensions of development. Clavender Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रColombo, Bernardo, और Bernardo;Demeny Colombo. Resources and Population: Natural, Institutional and Demographic Dimensions of Development. Clavender Press, 1996.
एमएलए (9वां संस्करण) प्रशस्ति पत्रColombo, Bernardo, और Bernardo;Demeny Colombo. Resources and Population: Natural, Institutional and Demographic Dimensions of Development. Clavender Press, 1996.
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