> Mehrbändiges Werk
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A pedestrian planning procedures manuel Vol. 1 Overview
[Washington, DC]: U.S. Gov. Print. Off., 1978
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A pedestrian planning procedures manuel Vol. 2 Procedures
[Washington, DC]: U.S. Gov. Print. Off., 1978
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A pedestrian planning procedures manuel Vol. 3 Technical supplement
[Washington, DC]: U.S. Gov. Print. Off., 1978