(1976). Traffic research problem statements (Kopie der Ausg. 1952, Washington, DC.). Univ. Microfilms.
Chicago Style (17th ed.) CitationTraffic Research Problem Statements. Kopie der Ausg. 1952, Washington, DC. Ann Arbor, Mich: Univ. Microfilms, 1976.
MLA (9th ed.) CitationTraffic Research Problem Statements. Kopie der Ausg. 1952, Washington, DC. Univ. Microfilms, 1976.
Warning: These citations may not always be 100% accurate.