Biennial report of the Division of Highways of the Department of Public Works, State of California to the Director of Public Works 1928/30-1936/38
Biennial report to the Governor of California by the Director of Public Works / State of California, Department of Public Works, Division of Highways 1938/40-<1940/42>
Vol. for 1928/30-1936/38 have title: Biennial report of the Division of Highways of the Department of Public Works, State of California to the Director of Public Works; vol. for 1938/40-<1940/42> have title: Biennial report to the Governor of California by the Director of Public Works / State of California, Department of Public Works, Division of Highways.