000 00387nam a2200133 i 4500
008 010101s1986 sp g eng
020 _a0521273854
245 0 _aThink twice - student's book
_c/ Hover, David
260 _aCambridge
_b:Cambridge University Press
_c,1986
650 _aDestrezas - expresión oral
700 _aHover, David
997 _e2