Books by Henry H. Symons
California mineral production and directory of mineral producers for 1945
California mineral production and directory of mineral producers for 1943
California mineral production and directory of mineral producers for 1942
California mineral production and directory of mineral producers for 1940
California mineral production and directory of mineral producers for 1936
California mineral production and directory of mineral producers for 1937
California mineral production and directory of mineral producers for 1935
California mineral production and directory of mineral producers for 1933
California mineral production and directory of mineral producers for 1934
California mineral production and directory of mineral producers for 1932
California mineral production and directory of mineral producers for 1931
California mineral production and directory of mineral producers for 1930
California mineral production for 1928
California mineral production for 1929
California mineral production for 1927