Baker, P. R., Zeiger, J. B., Caneday, L. M., Beck, L., Bullaro, J. J., & Clements, C. J. 1. (1991). Tourism and leisure: Dynamics and diversity. Alexandria, Virginia: National Recreation and Park Association.

Baker, Priscilla R., Jeffery B. Zeiger, Lowell M. Caneday, Larry Beck, John J. Bullaro, and Christine J. 1957- Clements. Tourism and Leisure: Dynamics and Diversity. Alexandria, Virginia: National Recreation and Park Association, 1991.

Baker, Priscilla R., et al. Tourism and Leisure: Dynamics and Diversity. Alexandria, Virginia: National Recreation and Park Association, 1991.