Παραπομπή σε μορφή APA (7η εκδ.)

National Library of Medicine (U.S.). (1990). Medical subject headings: Supplement to Index Medicus Volume 31, 1990. U.S. Dept. of Health and Human Services. National Library of Medicine.

Παραπομπή σε μορφή Chicago (17η εκδ.)

National Library of Medicine (U.S.). Medical Subject Headings: Supplement to Index Medicus Volume 31, 1990. [Bethesda: U.S. Dept. of Health and Human Services. National Library of Medicine, 1990.

Παραπομπή σε μορφή MLA (9th εκδ.)

National Library of Medicine (U.S.). Medical Subject Headings: Supplement to Index Medicus Volume 31, 1990. U.S. Dept. of Health and Human Services. National Library of Medicine, 1990.