Παραπομπή APA

Wethare, j. C. (1979). Systems Analysis for Computer Based Systems. West.

Παραπομπή Chicago Style

Wethare, james C. Systems Analysis for Computer Based Systems. New York: West, 1979.

Παραπομπή MLA

Wethare, james C. Systems Analysis for Computer Based Systems. West, 1979.