Bosticco, M. (1967). Etiquette for the business man. Business.
Chicago Style aipamenaBosticco, Mary. Etiquette for the Business Man. London: Business, 1967.
MLA aipamenaBosticco, Mary. Etiquette for the Business Man. Business, 1967.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.