(1999). National Library of Medicine classification: A scheme for the shelf arrangement of library materials in the field of medicine and its related sciences.
Lua i Stíl Chicago (17ú heag.)National Library of Medicine Classification: A Scheme for the Shelf Arrangement of Library Materials in the Field of Medicine and Its Related Sciences. 1999.
Lua MLA (9ú heag.)National Library of Medicine Classification: A Scheme for the Shelf Arrangement of Library Materials in the Field of Medicine and Its Related Sciences. 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.