Ulmer, Melville J. 1911- Economics: theory and practice / [by] Melville J. Ulmer. - 2d ed. - Boston : Houghton Mifflin c1965 - xxiv, 757 p. : ill. ; 25 cm. Includes bibliographies. Subjects--Topical Terms: Economics. Dewey Class. No.: 330 / ULE 1965