APA (7th ed.) Citation

Bilsborrow, R. E., Hugo, G., Oberai, A. S., & Zlotnik, H. (1997). International migration statistics. Guidelines for improving data collection systems. Geneva.

Chicago Style (17th ed.) Citation

Bilsborrow, Richard E., Graeme Hugo, Amarjit S. Oberai, and Hania Zlotnik. International Migration Statistics. Guidelines for Improving Data Collection Systems. Geneva, 1997.

MLA (8th ed.) Citation

Bilsborrow, Richard E., et al. International Migration Statistics. Guidelines for Improving Data Collection Systems. Geneva, 1997.