Barton Perry, R. (1950). General theory of value: Its meaning and basic principles construed in terms of interest. Harvard Univ. Press.
Chicago-Zitierstil (17. Ausg.)Barton Perry, Ralph. General Theory of Value: Its Meaning and Basic Principles Construed in Terms of Interest. Cambridge, Mass.: Harvard Univ. Press, 1950.
MLA-Zitierstil (8. Ausg.)Barton Perry, Ralph. General Theory of Value: Its Meaning and Basic Principles Construed in Terms of Interest. Harvard Univ. Press, 1950.
警告：這些引文格式不一定是100％准確.