000
00259nam a2200121 a 4500
003
EIA
001
6266
942
_0
2
_2
ddc
_c
BK
245
_a
TrigonometrĂa elemental
260
_c
c1961
008
141112s1961 ck r 000 u spa d
082
_a
516.24
_b
H35
999
_c
13430
_d
13430