APA (7 वां संस्करण) प्रशस्ति पत्र

Allen, E. v. N. (1943). Specialties in medical practice. T. Nelson and sons.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Allen, Edgar van Nuys. Specialties in Medical Practice. New York, Edinburgh: T. Nelson and sons, 1943.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Allen, Edgar van Nuys. Specialties in Medical Practice. T. Nelson and sons, 1943.