Barrow, C. (1997). Principles of small business. Int Thomson Pub.Co.
Chicago Style aipamenaBarrow, Colin. Principles of Small Business. London: Int Thomson Pub.Co, 1997.
MLA aipamenaBarrow, Colin. Principles of Small Business. Int Thomson Pub.Co, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.