Nitz, L. H. (1985). Business analysis and graphics with LOTUS 1-2-3. Prentice-Hall.
Dyfyniad Arddull ChicagoNitz, Lawrence H. Business Analysis and Graphics with LOTUS 1-2-3. Englewood Cliffs, N.J: Prentice-Hall, 1985.
Dyfyniad MLANitz, Lawrence H. Business Analysis and Graphics with LOTUS 1-2-3. Prentice-Hall, 1985.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.