Fuchs, V. R. (1964). Productivity trends in the goods and service sectors, 1929-61: A preliminary survey. National Bureau of Economic Research.
Cita Chicago (17th ed.)Fuchs, Victor Robert. Productivity Trends in the Goods and Service Sectors, 1929-61: A Preliminary Survey. [New York]: National Bureau of Economic Research, 1964.
Cita MLA (9th ed.)Fuchs, Victor Robert. Productivity Trends in the Goods and Service Sectors, 1929-61: A Preliminary Survey. National Bureau of Economic Research, 1964.
Atenció: Aquestes cites poden no estar 100% correctes.