LAPIN LAWRENCE. (1978). STATISTICS FOR MODERN BUSINESS DECISIONS. HARCOURT.
Dyfyniad Arddull ChicagoLAPIN LAWRENCE. STATISTICS FOR MODERN BUSINESS DECISIONS. NEW YORK: HARCOURT, 1978.
Dyfyniad MLALAPIN LAWRENCE. STATISTICS FOR MODERN BUSINESS DECISIONS. HARCOURT, 1978.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.