Hing, Esther.
Hyattsville, Md. : U.S. Dept. of Health and Human Services, Public Health Service, Office of Health Research, Statistics, and Technology, National Center for Health Statistics, 1981.
1981
Strahan, Genevieve W.
[Hyattsville, Md.] (6525 Belcrest Rd., Hyattsville 20782) : U.S. Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Center for Health Statistics, [1997]
1997
Website