TY  - BOOK
TI  - Childcraft: How things work
T2  - Childcraft : the how and why library
SN  - 9780716622710
U1  - 500.03 
PY  - 1988///
CY  - Chicago, Ill.
PB  - World Book
N2  - Explains how things work, from airplanes to X-ray machines
ER  -