Understanding our economy : analysis, issues, principles / by William P. Mortenson, Donald T. Krider and Roy J. Sampson. With the editorial assistance of Howard R. Anderson. Mortenson, W. P. (William Peter), 1895- Economics. HC106 .M785 330.1 MOU "For further reading": p. 469-477. Boston : Houghton Mifflin Co., 1964 1964 1964 Text ix, 502 p. : eng United States Economic conditions.