Ulmer, M. J. (1965). Economics: Theory and practice. Houghton Mifflin.
Chicago Edition CitationUlmer, Melville J. Economics: Theory and Practice. Boston: Houghton Mifflin, 1965.
MLA引文Ulmer, Melville J. Economics: Theory and Practice. Houghton Mifflin, 1965.
警告:這些引文格式不一定是100%准確.