TY  - BOOK
TI  - Mcgraw-Hill Encyclopedia of Science and Technology: Volume 9: Nai-Pep
SN  - 9780070797987
U1  - 503 
PY  - 1971///
CY  - New York
PB  - Mcgraw- Hill Book Company, Inc.
KW  - English
KW  - Science
KW  - General
KW  - Technology
N2  - An International Reference Work in Fifteen Volumes Including an Index
ER  -