Hudman, L. E., & Jackson, R. H. Geography of travel and tourism (2nd ed.). Columbia: Delmar Publishers.
Chicago-стиль цитированияHudman, Lloyd E., and Richard H. Jackson. Geography of Travel and Tourism. 2nd ed. Columbia: Delmar Publishers.
MLA-цитированиеHudman, Lloyd E., and Richard H. Jackson. Geography of Travel and Tourism. 2nd ed. Columbia: Delmar Publishers.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.