National Library of Medicine (U.S.). (1972). Medical subject headings: Supplement to Index Medicus Volume 14 number 1, part 2 January 1973. U.S. Dept. of Health and Human Services. National Library of Medicine.
Citace podle Chicago (17th ed.)National Library of Medicine (U.S.). Medical Subject Headings: Supplement to Index Medicus Volume 14 Number 1, Part 2 January 1973. [Bethesda: U.S. Dept. of Health and Human Services. National Library of Medicine, 1972.
Citace podle MLA (9th ed.)National Library of Medicine (U.S.). Medical Subject Headings: Supplement to Index Medicus Volume 14 Number 1, Part 2 January 1973. U.S. Dept. of Health and Human Services. National Library of Medicine, 1972.
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