WELSCH, G. A. Budgeting. Prentice-Hall.
Chicago Style aipamenaWELSCH, Glenn A. Budgeting. Prentice-Hall.
MLA aipamenaWELSCH, Glenn A. Budgeting. Prentice-Hall.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
APA aipamena