Langeland, P. (1970). Population screening for female breast tumours: A clinical investigation in Malmö, 1966 and 1967. [Translated by L. James Brown].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLangeland, Per. Population Screening for Female Breast Tumours: A Clinical Investigation in Malmö, 1966 and 1967. [Translated by L. James Brown]. Stockholm, 1970.
एमएलए (8वां संस्करण) प्रशस्ति पत्रLangeland, Per. Population Screening for Female Breast Tumours: A Clinical Investigation in Malmö, 1966 and 1967. [Translated by L. James Brown]. 1970.
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