Fabricant, S. (1972). Productivity in the tertiary sector. National Bureau of Economic Research.
Chicago Style (17th ed.) CitationFabricant, Solomon. Productivity in the Tertiary Sector. New York: National Bureau of Economic Research, 1972.
ציטוט MLAFabricant, Solomon. Productivity in the Tertiary Sector. National Bureau of Economic Research, 1972.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.