Lewis, W. A. (2013). The causes of unemployment in less developed countries and some research topics. International Labour Organization.
Chicago-Zitierstil (17. Ausg.)Lewis, W. Arthur. The Causes of Unemployment in Less Developed Countries and Some Research Topics. International Labour Organization, 2013.
MLA-Zitierstil (9. Ausg.)Lewis, W. Arthur. The Causes of Unemployment in Less Developed Countries and Some Research Topics. International Labour Organization, 2013.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.