TY  - BOOK
TI  - McGraw-Hill encyclopedia of science & technology
SN  - 0070792925 (set) Vol-7
U1  - 503.21 22
PY  - 1987///
CY  - New York
PB  - McGraw-Hill
KW  - Science
KW  - Encyclopedias
KW  - Technology
N1  - Includes bibliographies and indexes
ER  -