APA aipamena

Berkman, F. W. Selling today's resorts in tomorrow's market. Hotel Sales Management Association.

Chicago Style aipamena

Berkman, Frank W. Selling Today's Resorts in Tomorrow's Market. New York: Hotel Sales Management Association.

MLA aipamena

Berkman, Frank W. Selling Today's Resorts in Tomorrow's Market. Hotel Sales Management Association.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.