Humble, J. W. (1968). Improving business results (2nd ed.). McGraw-Hill.
Chicago Edition CitationHumble, John W. Improving Business Results. 2nd ed. Berkshire: McGraw-Hill, 1968.
ציטוט MLAHumble, John W. Improving Business Results. 2nd ed. McGraw-Hill, 1968.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.