(1975). Production and productivity in the service industries: National Bureau of Economic Research. Conference on research in income and wealth (2. print.). Columbia Univ. Press.
Chicago-Zitierstil (17. Ausg.)Production and Productivity in the Service Industries: National Bureau of Economic Research. Conference on Research in Income and Wealth. 2. print. New York: Columbia Univ. Press, 1975.
MLA-Zitierstil (9. Ausg.)Production and Productivity in the Service Industries: National Bureau of Economic Research. Conference on Research in Income and Wealth. 2. print. Columbia Univ. Press, 1975.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.