Irvin, George. Modern cost-benefit methods : an introduction to financial, economic, and social appraisal of development projects / George Irvin. - New York : Barnes & Noble Books, 1978. - xii, 257 p. : ill. ; 24 cm. Includes index. Bibliography: p. 240-248. ISBN: 0333232070 LCCN: 78002718 Subjects--Topical Terms: Cost effectivenessMaliyet etkinliği LC Class. No.: HD47 / .I78 1978 Dewey Class. No.: 658.1552 / IRV 1978