Dyfyniad APA

Journal of Medicine New England. (1991). The New Journal of Medicine Nº 18. owned published.

Dyfyniad Arddull Chicago

Journal of Medicine New England. The New Journal of Medicine Nº 18. Massachusetts: owned published, 1991.

Dyfyniad MLA

Journal of Medicine New England. The New Journal of Medicine Nº 18. owned published, 1991.

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