TY  - BOOK
AU  - Mcgraw- Hill encyclopedia of  science and technology, x
AU  - x
TI  - Mcgraw-Hill year book of science & technology: Comprehensive coverage of recent
SN  - x       
U1  - REF 505/MCG 
PY  - 1985///
CY  - N.Y.
PB  - McGraw-Hill
KW  - Technology-Yearbooks
KW  - Science-Yearbooks
ER  -