por Harvey, Greg [autor] | Harvey, Greg. 1-2-3 for dummies.
por Bartel, Rainer [autor] | Tamayo, Jorge [traductor] | Bartel, Rainer. Up & running with lotus 1-2-3.
por Nielsen, Joyce J [autor] | Cardenas, Agustin [traductor] | Nielsen, Joyce J. Special edition using 1-2-3 release 2.4.