Opportunity cost in finance and accounting / H.G. Heymann and Robert Bloom. Heymann, H. G. Bloom, Robert. Cost accounting. Finance. Opportunity costs. 658.15 20 HEO Includes bibliographical references (p. 189-193) and index. New York : Quorum Books, 1990. 1990. 1990 Text xv, 199 p. : eng