Wood, D. F. (1989). Contemporary Transportation Donald F. Wood And James C. Johnson. Macmillan.
Lua i Stíl Chicago (17ú heag.)Wood, Donald F. Contemporary Transportation Donald F. Wood And James C. Johnson. Macmillan, 1989.
Lua MLA (8ú heag.)Wood, Donald F. Contemporary Transportation Donald F. Wood And James C. Johnson. Macmillan, 1989.
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