DOCTOR, R. (1994). PRINCIPLES AND PRACTICE OF BUSINESS COMMUNICATION. SHETH PUB.
Chicago Style aipamenaDOCTOR, RHODA. PRINCIPLES AND PRACTICE OF BUSINESS COMMUNICATION. BOMBAY: SHETH PUB, 1994.
MLA aipamenaDOCTOR, RHODA. PRINCIPLES AND PRACTICE OF BUSINESS COMMUNICATION. SHETH PUB, 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.