Riggleman, J. R., & Frisbee, I. N. (1938). Bussines statistics (2. ed.). McGraw-Hill.
Chicago Style (17th ed.) CitationRiggleman, John R., and Ira N. Frisbee. Bussines Statistics. 2. ed. New York: McGraw-Hill, 1938.
MLA (9th ed.) CitationRiggleman, John R., and Ira N. Frisbee. Bussines Statistics. 2. ed. McGraw-Hill, 1938.