Berry, T. (1986). Business planning with IBM (R) personal decision software. Bow Jones-Irwin.
Dyfyniad Arddull ChicagoBerry, Timothy. Business Planning with IBM (R) Personal Decision Software. Homewood, Ill: Bow Jones-Irwin, 1986.
Dyfyniad MLABerry, Timothy. Business Planning with IBM (R) Personal Decision Software. Bow Jones-Irwin, 1986.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.