Berkman, F. W. Selling today's resorts in tomorrow's market. Hotel Sales Management Association.
芝加哥风格引文Berkman, Frank W. Selling Today's Resorts in Tomorrow's Market. New York: Hotel Sales Management Association.
MLA引文Berkman, Frank W. Selling Today's Resorts in Tomorrow's Market. Hotel Sales Management Association.
警告：这些引文格式不一定是100％准确.