APA

Transportation Research Record nr 649, . (1977). Preferences, perceptions, and market segments in travel behavior. Washington DC: Transportation Research Record nr 649.

Chicago

Transportation Research Record nr 649, . 1977. Preferences, perceptions, and market segments in travel behavior. Washington DC: Transportation Research Record nr 649.

Harvard

Transportation Research Record nr 649, . (1977). Preferences, perceptions, and market segments in travel behavior. Washington DC: Transportation Research Record nr 649.

MLA

Transportation Research Record nr 649, . Preferences, perceptions, and market segments in travel behavior. Washington DC: Transportation Research Record nr 649. 1977.