TY  - BOOK
AU  - Jack C. Richards
TI  - Error Analysis : perspectives on second language acquisition
T2  - Applied linguistics and language study
SN  - 0582550440
U1  - 407 R516e 
PY  - 1974///
CY  - London
PB  - Longman
KW  - Language and languages
KW  -  Study and teaching
KW  -  Error analysis
KW  -  Interference (Linguistics) Competence and performance (Linguistics)
ER  -