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Dyfyniad Arddull ChicagoKroenke, David M., and Donald E. Nilson. Database Processing for Microcomputers. Chicago: Science Research Associates, 1986.
Dyfyniad MLAKroenke, David M., and Donald E. Nilson. Database Processing for Microcomputers. Science Research Associates, 1986.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.