APA aipamena

Optner, S. L. (1968). Systems analysis for business management. Prentice-Hall.

Chicago Style aipamena

Optner, Stanford L. Systems Analysis for Business Management. Englewood Cliffs, NJ: Prentice-Hall, 1968.

MLA aipamena

Optner, Stanford L. Systems Analysis for Business Management. Prentice-Hall, 1968.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.