Deismireacht APA

Grava, S. (2003). Urban transportation systems. New York: McGraw-Hill.

Trích dẫn kiểu Chicago

Grava, Sigurd. Urban Transportation Systems. New York: McGraw-Hill, 2003.

Deismireacht MLA

Grava, Sigurd. Urban Transportation Systems. New York: McGraw-Hill, 2003.

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