Não informado. (1938). Gradwohl laboratory digest. International Society of Clinical Laboratory Technologists.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Gradwohl Laboratory Digest. Saint Louis, Mo: International Society of Clinical Laboratory Technologists, 1938.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Gradwohl Laboratory Digest. International Society of Clinical Laboratory Technologists, 1938.
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