TY  - BOOK
AU  - Roff, W J
TI  - Fibres, films, plastics and rubbers: A handbook of common polymers
U1  - 678(035) 
PY  - 1971///
CY  - London
PB  - Butterworths
KW  - Films
KW  - Plastics
KW  - Rubbers
ER  -