APA (7 वां संस्करण) प्रशस्ति पत्र

Goeldner, C. R. (1978). The airline skier, 1977-78 season: A comparison of the skiers traveling by commercial air in five skier studies conducted at Aspen, Vail, Steamboat, Winter Park and Copper Mountain. Business Research Division, University of Colorado.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Goeldner, Charles R. The Airline Skier, 1977-78 Season: A Comparison of the Skiers Traveling by Commercial Air in Five Skier Studies Conducted at Aspen, Vail, Steamboat, Winter Park and Copper Mountain. Boulder, Colo.: Business Research Division, University of Colorado, 1978.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Goeldner, Charles R. The Airline Skier, 1977-78 Season: A Comparison of the Skiers Traveling by Commercial Air in Five Skier Studies Conducted at Aspen, Vail, Steamboat, Winter Park and Copper Mountain. Business Research Division, University of Colorado, 1978.

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