000
00251nam a2200097Ia 4500
008
150310s9999 xx 000 0 und d
100
_a
R V G MENON
245
_a
HISTORY OF SCIENCE AND TECHNOLOGY
250
_a
4
260
_c
1991
_b
"BHAGYA BOOK HOUSE, TVM"
999
_c
21874
_d
21874