Hawkins. (1971). macmillan studies in Economics capital investment appraisal. Macmillan.
Chicago Style aipamenaHawkins. Macmillan Studies in Economics Capital Investment Appraisal. London: Macmillan, 1971.
MLA aipamenaHawkins. Macmillan Studies in Economics Capital Investment Appraisal. Macmillan, 1971.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.