Krug, E. E., & McGuigan, H. A. 1. (1951). An introduction to materia medica and pharmacology (Sixth edition.). Editorial Mosby Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKrug, E. Elsie, और Hugh Alister. 1866–1943 McGuigan. An Introduction to Materia Medica and Pharmacology. Sixth edition. Chicago: Editorial Mosby Company, 1951.
एमएलए (8वां संस्करण) प्रशस्ति पत्रKrug, E. Elsie, और Hugh Alister. 1866–1943 McGuigan. An Introduction to Materia Medica and Pharmacology. Sixth edition. Editorial Mosby Company, 1951.
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