TY  - BOOK
AU  - "Dickie, Alison"
TI  - Questions Kids Ask About Inventions
T2  - Questions kids ask, 13
SN  - 0717225526
U1  - 000 
PY  - 1989///
CY  - Toronto
PB  - Grolier Limited
N2  - Answers such questions as Who invented frozen food?; When was writing invented?; Who invented chewing gum?
ER  -