000			00445cam a22001458a 4500
020			_a9780070171817
050	0	0	_aPC4129.E5 _bD67 2009b
245	0	0	_aDos mundos / _cTracy Terrell ... [et al.]. _bCommunicacion y comunidad
250			_a7th ed.
260			_aNew York : _bMcGraw-Hill Higher Education, _c2009.
300			_a1 v. (various pagings) : _bcol. ill., col. maps ;
650		0	_aSpanish language
700	1		_aTerrell, Tracy D.
942			_cLL
999			_c5902 _d5902