TY  - RPRT
TI  - The fertility decline in developing countries.
AU  - B Robey
AU  - S O Rutstein
AU  - L Morris
PY  - 1993
DO  - 10.1038/scientificamerican1293-60
UR  - https://pubmed.ncbi.nlm.nih.gov/8266060/
ID  - 8266060
ER  -