APA (7th ed.) Citation

Michael Hagmann. (2001). The world in 2050: More crowded, urban and aged. The World Health Organization.

Chicago Style (17th ed.) Citation

Michael Hagmann. The World in 2050: More Crowded, Urban and Aged. The World Health Organization, 2001.

MLA (9th ed.) Citation

Michael Hagmann. The World in 2050: More Crowded, Urban and Aged. The World Health Organization, 2001.

Warning: These citations may not always be 100% accurate.