Não informado. (1973). ASA Refresher Courses in Anesthesiology. American Society of Anesthesiologists.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. ASA Refresher Courses in Anesthesiology. Philadelphia, Pa: American Society of Anesthesiologists, 1973.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. ASA Refresher Courses in Anesthesiology. American Society of Anesthesiologists, 1973.
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