Transportation in theory
Contributors: Canadian Broadcasting Corporation.
Series: CBC learning system. Audiotape ; 263
Publisher: Canadian Broadcasting Corporation
Published: 1972
Place of publication: [Toronto]
Language: eng
Subjects: Traffic flow.; Communication and traffic.
Notes: One tape, 30 minutes long. Hans Blumenfeld in an interview about some of the strategies that have been developed to deal with increasing traffic to and in the large cities of the world.

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[sound recording]