00497nam a2200157Ia 450000100070000000500170000700800410002402000280006502000280009308200190012110000360014024500640017626000390024030000230027965000370030224914320160527185533.0010521s1996 mx a spa a9682453038 (v.1)c12.60 a9682452414 (v.2)c15.1000a651.74bC3523c1 aCastillo Peña, Leonor.2Local10aCorrespondencia comercial básicacLeonor Castillo Peña. aMéxicobEditorial Trillasc1996. a2 v.bill.c27 cm. 0aCommercial correspondence2Local