S Rao Vellabhaneni. (1987). Auditing the Maintenance of Software. Prentice-Hall.
Chicago Style aipamenaS Rao Vellabhaneni. Auditing the Maintenance of Software. Prentice-Hall, 1987.
MLA aipamenaS Rao Vellabhaneni. Auditing the Maintenance of Software. Prentice-Hall, 1987.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.