Cita APA (7th ed.)

Wrigley, E. A. (2004). Poverty, progress, and population. Cambridge University Press.

Cita Chicago (17th ed.)

Wrigley, E. A. Poverty, Progress, and Population. Cambridge: Cambridge University Press, 2004.

Cita MLA (9th ed.)

Wrigley, E. A. Poverty, Progress, and Population. Cambridge University Press, 2004.