000
00249nam a2200121 a 4500
003
EIA
001
5392
942
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2
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BK
245
_a
TrigonometrĂa
260
_c
c1979
008
141112s1979 ck r 000 u spa d
082
_a
516.24
_b
D67
999
_c
13426
_d
13426