TY  - RPRT
TI  - Reproductive efficiency as a social indicator.
AU  - C Muller
AU  - F S Jaffe
AU  - M G Kovar
PY  - 1976
DO  - 10.2190/4wd5-f20v-u0g8-fgfv
UR  - https://pubmed.ncbi.nlm.nih.gov/955754/
ID  - 955754
ER  -