Não informado. (1927). California highways and public works. State of California, Department of Public Works.
Chicago-Zitierstil (17. Ausg.)Não informado. California Highways and Public Works. Sacramento, Calif: State of California, Department of Public Works, 1927.
MLA-Zitierstil (8. Ausg.)Não informado. California Highways and Public Works. State of California, Department of Public Works, 1927.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.