Dyfyniad APA

(1998). National Health Interview Survey, 1995 Year 2000 Objectives Supplement / United States Department of Health and Human Services. National Center for Health Statistics. [electronic resource].

Dyfyniad Arddull Chicago

National Health Interview Survey, 1995 Year 2000 Objectives Supplement / United States Department of Health and Human Services. National Center for Health Statistics. [electronic Resource]. 1998.

Dyfyniad MLA

National Health Interview Survey, 1995 Year 2000 Objectives Supplement / United States Department of Health and Human Services. National Center for Health Statistics. [electronic Resource]. 1998.

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