Lessler, Judith T.
Hyattsville, Md. : U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control, National Center for Health Statistics, 1989.
1989
Hyattsville, Md. : U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Center for Health Statistics ; [Washington, D.C. : Supt. of Docs., U.S. G.P.O., distributor, 1994]
1994