TY  - BOOK
TI  - McGraw-Hill Encyclopedia of Science and Technology 2
SN  - 0079092063
U1  - 503 
PY  - 1992///
CY  - New York : 
PB  - McGraw-Hill, 
KW  - Science Encyclopedias
N1  - NN; v. 2.
UR  - https://eaklibrary.neduet.edu.pk:8443/catalog/bk/books/toc/0-07-909206-3.pdf
ER  -