TACK ALFRED. (1990). HOW TO SUCCEED AS A SALES MANAGER. CEDAR MANDRAIN.
Chicago Style aipamenaTACK ALFRED. HOW TO SUCCEED AS A SALES MANAGER. LONDON: CEDAR MANDRAIN, 1990.
MLA aipamenaTACK ALFRED. HOW TO SUCCEED AS A SALES MANAGER. CEDAR MANDRAIN, 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.