Sepulveda, J. A., Souder, W. E., & Gottfried, B. S. (1984). Schaum's Outline of Theory and Problems of Engineering Economics. McGraw Hill.

Sepulveda, Jose A., William E. Souder, and Byron S. Gottfried. Schaum's Outline of Theory and Problems of Engineering Economics. New York: McGraw Hill, 1984.

Sepulveda, Jose A., et al. Schaum's Outline of Theory and Problems of Engineering Economics. McGraw Hill, 1984.