Campbell, M. E. (1975). Highway research organizations: Description of existing organizational patterns and scope of activities (Facs. [der Ausg.] 1953.). Univ. Microfilms.
Chicago-Zitierstil (17. Ausg.)Campbell, Moses E. Highway Research Organizations: Description of Existing Organizational Patterns and Scope of Activities. Facs. [der Ausg.] 1953. Ann Arbor, Mich: Univ. Microfilms, 1975.
MLA-Zitierstil (9. Ausg.)Campbell, Moses E. Highway Research Organizations: Description of Existing Organizational Patterns and Scope of Activities. Facs. [der Ausg.] 1953. Univ. Microfilms, 1975.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.