TY  - BOOK
AU  - Cohen, Louis, 1928-
AU  - 
ED  - 
ED  - 
ED  - 
ED  - 
TI  - : a manual of materials and methods 
SN  - 0063180472 (hardbound)
SN  - 2
PY  - 1976///.46
CY  - London ;;New York
PB  - Harper & Row
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
KW  - Research
KW  - Education
N1  - Includes bibliographies and index; 5; Professional
ER  -