TY  - BOOK
AU  - Hayes A S
ED  - US. Health, Education and Welfare, dept
TI  - Language laboratory facilities: technical guide for the selection, purchase use and maintenance
U1  - 407.2 
PY  - 1963///
CY  - Washington
PB  - Govt Printing
KW  - Language
KW  - Language laboratory facility
KW  - Technical guide
ER  -