APA aipamena

Gibson, J. E. (2007). How to do systems analysis. Hoboken, N.J: Wiley-Interscience.

Chicago Style aipamena

Gibson, John E. How to Do Systems Analysis. Hoboken, N.J: Wiley-Interscience, 2007.

MLA aipamena

Gibson, John E. How to Do Systems Analysis. Hoboken, N.J: Wiley-Interscience, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.