APA ציטוט

Malthus,T R, & James,Patricia. (1989). An essay on the principle of population. Cambridge University Press.

Chicago Edition Citation

Malthus,T R, and James,Patricia. An Essay on the Principle of Population. Cambridge: Cambridge University Press, 1989.

ציטוט MLA

Malthus,T R, and James,Patricia. An Essay on the Principle of Population. Cambridge University Press, 1989.