APA
Irvin G., . (1978). Modern cost-benefit methods : an introduction to financial, economic and social appraisal of development projects. LondonGB: Macmillan.
Chicago
Irvin George, . 1978. Modern cost-benefit methods : an introduction to financial, economic and social appraisal of development projects. LondonGB: Macmillan.
Harvard
Irvin G., . (1978). Modern cost-benefit methods : an introduction to financial, economic and social appraisal of development projects. LondonGB: Macmillan.
MLA
Irvin George, . Modern cost-benefit methods : an introduction to financial, economic and social appraisal of development projects. LondonGB: Macmillan. 1978.