por Velazquez, Jose M [autor].
por Vallejo Pareja, Miguel A [editor] | Comeche Moreno, Ma. Isabel [editor].
por Rosenthal, Irving, 1912- [autor] | Sanchez, Edmundo [traductor] | Rudman, Harry William, 1908- [autor] | Rosenthal, Irving, 1912-. Business letter writing made simple.