000
003120000a22001330004500
245
_a
McGraw Hill year book of science and technology 1968
260
_a
N ew york
_b
McGraw Hill
_c
1962
300
_a
468p.
080
_a
6(03)
_b
M3
650
_a
SCIENCE
650
_a
TECHNOLOGY
041
_a
EN
942
_c
BK
999
_c
93731
_d
93731