TY  - BOOK
TI  - McGraw-Hill year book of science and technology 1990
SN  - 0-07-045491-4
U1  - 505 
PY  - 1990///
CY  - New York
PB  - McGraw-Hill
KW  - Science-Yearbook
KW  - Technology-Yearbook
N1  - Includes index
ER  -