(1977). Canadian business. Toronto: CB Media.
Chicago Style aipamenaCanadian Business. Toronto: CB Media, 1977.
MLA aipamenaCanadian Business. Toronto: CB Media, 1977.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
(1977). Canadian business. Toronto: CB Media.
Chicago Style aipamenaCanadian Business. Toronto: CB Media, 1977.
MLA aipamenaCanadian Business. Toronto: CB Media, 1977.