Ferber, R., & Verdoorn, P. (1962). Research methods in economics and business. Macmillan company.
Chicago Edition CitationFerber, Robert, and P.J Verdoorn. Research Methods in Economics and Business. London: Macmillan company, 1962.
MLA Edition CitationFerber, Robert, and P.J Verdoorn. Research Methods in Economics and Business. Macmillan company, 1962.
Warning: These citations may not always be 100% accurate.