Dyfyniad APA

National Library of Medicine. Medical subject headings: Suplement to index medicus.

Dyfyniad Arddull Chicago

National Library of Medicine. Medical Subject Headings: Suplement to Index Medicus.

Dyfyniad MLA

National Library of Medicine. Medical Subject Headings: Suplement to Index Medicus.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.