Cook, J. (1998). General surgery at the district hospital. World Health Organization.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCook, John. General Surgery at the District Hospital. Ginebra: World Health Organization, 1998.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCook, John. General Surgery at the District Hospital. World Health Organization, 1998.
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