APA (7th ed.) Zitazioa
Eno, W. P. (1929). Simplification of highway traffic.
Chicago Style (17th ed.) Zitazioa
Eno, William Phelps. Simplification of Highway Traffic. Saugatuk, Connecticut, 1929.
MLA (9th ed.) Zitazioa
Eno, William Phelps. Simplification of Highway Traffic. 1929.
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