TY  - BOOK
T1  - Inventions
T2  - Then & now
A2  - Ashworth, F. J.
LA  - English
PP  - Edinburgh
PB  - McDougall
YR  - 1978
UL  - http://glotrec.wdi-staging.gei.de/cat/Record/gei564536989
SN  - 0715713140
KW  - Schulbuch
ER  -