Saffer, H., & Dave, D. (2001). Mental illness and the demand for alcohol, cocaine and cigarettes. National Bureau of Economic Research.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSaffer, Henry, और Dhaval Dave. Mental Illness and the Demand for Alcohol, Cocaine and Cigarettes. Cambridge: National Bureau of Economic Research, 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSaffer, Henry, और Dhaval Dave. Mental Illness and the Demand for Alcohol, Cocaine and Cigarettes. National Bureau of Economic Research, 2001.
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