000
00262nam a2200121 a 4500
003
EIA
001
5354
942
_0
2
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ddc
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BK
245
_a
TrigonometrĂa plana
260
_c
c1987
008
141112s1987 ck r 000 u spa d
082
_a
516.24
_b
N699t
_c
2ed
999
_c
13432
_d
13432