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Powell, C. Jack Reid, Roadside Americans: The Rise and Fall of Hitchhiking in a Changing Nation (University of North Carolina Press 2020); Linda Mahood, Thumbing a Ride: Hitchhikers, Hostels, and Counterculture in Canada (University of British Columbia Press, 2018). L/LT 2020, 86, 195⁠⁠–⁠198.