000
00271nam a22001217a 4500
999
_c
503380
_d
503380
082
_a
037
_b
PRO/G.5
100
_a
Prokhorov,A M.
245
_a
Great Soviet encyclopedia,Vol.5
250
_a
3rd ed.
260
_a
Newyork
_b
Macmillan
_c
1974
300
_a
754p.
942
_c
BK