Olney, R. C. (1970). Impulse travel: Changing trends in auto vacation travel. 3M National Advertising Company.
Citazione stile Chigago Style (17a edizione)Olney, Robert C. Impulse Travel: Changing Trends in Auto Vacation Travel. [s.l.]: 3M National Advertising Company, 1970.
Citatione MLA (9a ed.)Olney, Robert C. Impulse Travel: Changing Trends in Auto Vacation Travel. 3M National Advertising Company, 1970.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.