APA引文

Goeldner, C. R., Duea, K., & Sletta, Y. (1973). Travel trends in the United States and Canada. Business Research Division, University of Colorado.

Chicago Style (17th ed.) Citation

Goeldner, Charles R., Karen Duea, and Yvonne Sletta. Travel Trends in the United States and Canada. Boulder,: Business Research Division, University of Colorado, 1973.

MLA引文

Goeldner, Charles R., et al. Travel Trends in the United States and Canada. Business Research Division, University of Colorado, 1973.