Gaya APA

Gottfried, J, A, S, W, E, S, A, B, S. (1984). Schaum's outline of theory and problems of engineering economics . : McGrawhill.

Gaya MLA

Gottfried, Jose, A., Sepulveda,, William, E., Souder, And, Byron, S.. "Schaum's outline of theory and problems of engineering economics". : McGrawhill, 1984. Text.