CPSC. (1991). UNIT 2 SMALL BUSINESS SELF ASSESSMENT. CPSC.
Chicago Style aipamenaCPSC. UNIT 2 SMALL BUSINESS SELF ASSESSMENT. CPSC, 1991.
MLA aipamenaCPSC. UNIT 2 SMALL BUSINESS SELF ASSESSMENT. CPSC, 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.