(1978). National Library of Medicine classification: A scheme for the shelf arrangement of books in the field of medicine and its related sciences.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNational Library of Medicine Classification: A Scheme for the Shelf Arrangement of Books in the Field of Medicine and Its Related Sciences. 1978.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিNational Library of Medicine Classification: A Scheme for the Shelf Arrangement of Books in the Field of Medicine and Its Related Sciences. 1978.
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