Dyfyniad APA
ebrary, Inc, Melnick, D., & Rouse, B. (2001). Portrait of health in the United States. Bernan.
Dyfyniad Arddull Chicago
ebrary, Inc, Daniel Melnick, and Beatrice Rouse. Portrait of Health in the United States. Lanham, MD.: Bernan, 2001.
Dyfyniad MLA
ebrary, Inc, et al. Portrait of Health in the United States. Bernan, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.