Preliminary geologic map of the Calabasas 7.5' Quadrangle, Southern California; a digital database
["Preliminary geologic map of the Calabasas 7.5' Quadrangle, Southern California; a digital database", "Preliminary geologic map of the Calabasas 7.5' Quadrangle, Southern California; a digital database", 'Open-File Report', '1995-01-01', 'geologic map']