APA

National Center for Health Statistics U.S, .VitalStats. Hyattsville, MD: Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Center for Health Statistics.

Chicago

National Center for Health Statistics U.S, .VitalStats. Hyattsville, MD: Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Center for Health Statistics.

Harvard

National Center for Health Statistics U.S, .VitalStats. Hyattsville, MD: Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Center for Health Statistics.

MLA

National Center for Health Statistics U.S, .Hyattsville, MD: Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Center for Health Statistics. .