Gould, W. T. S. (2009). Population and development. Routledge.
Chicago Style aipamenaGould, W. T. S. Population and Development. London ; New York: Routledge, 2009.
MLA aipamenaGould, W. T. S. Population and Development. Routledge, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.