TY  - RPRT
A1  - U.S. Department of Health and Human Services, National Center for Health Statistics 
Y1  - 1988
UR  - http://www.cdc.gov/nchs/nsfg/nsfg_cycle4.htm
PB  - National Survey of Family Growth, Cycle IV, 1988. U.S. Department of Health and Human Services, National Center for Health Statistics 

ER  -