Παραπομπή APA

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

Παραπομπή Chicago Style

Wringley,E A. Poverty,progress and Population. Great Britain: Cambridge University Press, 2004.

Παραπομπή MLA

Wringley,E A. Poverty,progress and Population. Cambridge University Press, 2004.