Παραπομπή APA

Silver, G. A., & Silver, J. B. (1976). Introduction to systems analysis. Prentice-Hall.

Παραπομπή Chicago Style

Silver, Gerald A., και Joan B. Silver. Introduction to Systems Analysis. Englewood cliffs: Prentice-Hall, 1976.

Παραπομπή MLA

Silver, Gerald A., και Joan B. Silver. Introduction to Systems Analysis. Prentice-Hall, 1976.