Lua APA (7ú heag.)

Schweiger, C. L. (2006). Methods of rider communication. Transportation Research Board.

Lua i Stíl Chicago (17ú heag.)

Schweiger, Carol L. Methods of Rider Communication. Washington, D.C: Transportation Research Board, 2006.

Lua MLA (8ú heag.)

Schweiger, Carol L. Methods of Rider Communication. Transportation Research Board, 2006.

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