Balan K R & Rayudu C S. (1991). Marketing and sales management.
Chicago Style aipamenaBalan K R and Rayudu C S. Marketing and Sales Management. :, 1991.
MLA aipamenaBalan K R and Rayudu C S. Marketing and Sales Management. 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.