International Labour Office, United Nations Population Fund, & Bilsborrow, R. E. (1997). International migration statistics: Guidelines for improving data collection systems. International Labour Office.
Chicago-Zitierstil (17. Ausg.)International Labour Office, United Nations Population Fund, und Richard E. Bilsborrow. International Migration Statistics: Guidelines for Improving Data Collection Systems. Geneva: International Labour Office, 1997.
MLA-Zitierstil (9. Ausg.)International Labour Office, et al. International Migration Statistics: Guidelines for Improving Data Collection Systems. International Labour Office, 1997.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.