TY  - BOOK
AU  - Mcgraw Hill Book Company
AU  - B
ED  - 
TI  - Mcgraw hill encyclopedia of science and technology in 15 vols
U1  - 503 mcg/mcg 
PY  - 1977///
CY  - New York
PB  - Mcgraw Hill Book Co
N1  - 4
ER  -