Ehrhorn, E.M. 1907 Annual report of Deputy Commissioner of Horticulture.. Second Biennial Report of the Commissioner of Horticulture of the State of California for 1905-1906. Sacramento
Ehrhorn, E.M. 1907 Annual report of Deputy Commissioner of Horticulture.. Second Biennial Report of the Commissioner of Horticulture of the State of California for 1905-1906. Sacramento