Department of Health and Human Services. National library of medicine current catalog: Monographs & serials subject sections medical reference works. National Library of Medicine.
Παραπομπή σε μορφή Chicago (17η εκδ.)Department of Health and Human Services. National Library of Medicine Current Catalog: Monographs & Serials Subject Sections Medical Reference Works. Bethesda: National Library of Medicine.
Παραπομπή σε μορφή MLA (8th εκδ.)Department of Health and Human Services. National Library of Medicine Current Catalog: Monographs & Serials Subject Sections Medical Reference Works. National Library of Medicine.
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