Pratt, R. H., & Copple, J. (1981). Traveler response to transportation system changes (2. edition.). Washington: BartonAshman.
Citación estilo ChicagoPratt, Richard H., y John Copple. Traveler Response to Transportation System Changes. 2. edition. Washington: BartonAshman, 1981.
Cita MLAPratt, Richard H., y John Copple. Traveler Response to Transportation System Changes. 2. edition. Washington: BartonAshman, 1981.
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