000
00303nam a2200109Ia 4500
008
151011s9999 xx 000 0 und d
041
_a
ENG
245
_a
Proceedings of the national academy sciences
260
_c
1961
_a
Allahabad
_b
National Academy of Sciences
300
_a
31v. 449p.
942
_c
BK
_2
udc
999
_c
21322
_d
21322