APA ציטוט
Hay,William W. (1977). An introduction to transportation engineering (2nd ed.). Robert E.Krieger pub..
Chicago Style (17th ed.) Citation
Hay,William W. An Introduction to Transportation Engineering. 2nd ed. New York: Robert E.Krieger pub., 1977.
ציטוט MLA
Hay,William W. An Introduction to Transportation Engineering. 2nd ed. Robert E.Krieger pub., 1977.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.