Clark, J. R. Economics : cost and choice / J.R. Clark, Michael Veseth. - San Diego : Harcourt Brace Jovanovich, c1987. - xvi, 846 p. : ill. ; 29 cm. Includes bibliographies and index. ISBN: 0155188305 Subjects--Topical Terms: Economics. LC Class. No.: HB171.5 / .C675 1987 Dewey Class. No.: 330.9046