TY  - RPRT
TI  - Social class, defective hearing, and language.
AU  - A P Van Den Horst
AU  - O W Kamstra
PY  - 1979
DO  - 10.1016/0021-9924(79)90043-1
UR  - https://pubmed.ncbi.nlm.nih.gov/438361/
ID  - 438361
ER  -