Singh Balraj. (2005). Entrepreneurship Development (2nd.). Wisdom Publications.
Chicago Style aipamenaSingh Balraj. Entrepreneurship Development. 2nd. Delhi: Wisdom Publications, 2005.
MLA aipamenaSingh Balraj. Entrepreneurship Development. 2nd. Wisdom Publications, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.