TY  - RPRT
TI  - Child development in a Swedish town.
AU  - M Playfair
PY  - 1969
DO  - 10.1111/j.1469-8749.1969.tb01531.x
UR  - https://pubmed.ncbi.nlm.nih.gov/5366203/
ID  - 5366203
ER  -