Malthus, T., & Pullen, J. (1989). Principles of Political Economy. Cambridge University Press.
シカゴスタイル引用形Malthus, T.R, , John Pullen. Principles of Political Economy. Cambridge: Cambridge University Press, 1989.
MLA引用形式Malthus, T.R, , John Pullen. Principles of Political Economy. Cambridge University Press, 1989.
警告: この引用は必ずしも正確ではありません.