Ottosen, K. (1954). How the Students of Olso Entered the Hotel Business. Ind Med Gaz.
Chicago Style aipamenaOttosen, Kristian. "How the Students of Olso Entered the Hotel Business." Ind Med Gaz 1954.
MLA aipamenaOttosen, Kristian. "How the Students of Olso Entered the Hotel Business." Ind Med Gaz 1954.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.