Dowling, E. T. (1993). Schaum's outline of theory and problems of mathematical methods for business and economics. McGraw-Hill.

Dowling, Edward Thomas. Schaum's Outline of Theory and Problems of Mathematical Methods for Business and Economics. New York: McGraw-Hill, 1993.

Dowling, Edward Thomas. Schaum's Outline of Theory and Problems of Mathematical Methods for Business and Economics. McGraw-Hill, 1993.