Population Council, Lutz, W., Prskawetz, A., & Sanderson, W. C. (2002). Population and environment: Methods of analysis. Population Council.
Dyfyniad Arddull ChicagoPopulation Council, Wolfgang Lutz, Alexia Prskawetz, and Warren C. Sanderson. Population and Environment: Methods of Analysis. New York: Population Council, 2002.
Dyfyniad MLAPopulation Council, et al. Population and Environment: Methods of Analysis. Population Council, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.