APA-viite (7. p.)
Hay,William W. (1977). An introduction to transportation engineering (2nd ed.). Robert E.Krieger pub..
Chicago-viite (17. p.)
Hay,William W. An Introduction to Transportation Engineering. 2nd ed. New York: Robert E.Krieger pub., 1977.
MLA-viite (9. p.)
Hay,William W. An Introduction to Transportation Engineering. 2nd ed. Robert E.Krieger pub., 1977.
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