Hothersall, D. C., & Salter, R. J. (1977). Transport and the Environment. Crosby Lockwood Staples.
Chicago Edition CitationHothersall, David. C., i Richard. J. Salter. Transport and the Environment. London: Crosby Lockwood Staples, 1977.
Cita MLAHothersall, David. C., i Richard. J. Salter. Transport and the Environment. Crosby Lockwood Staples, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.