Northern Calaveras CountyJudith Marvin, Julia Costello, Salvatore Manna · First published 2007Open the Tome
Documentary evidence for the Spanish missions of Alta CaliforniaJulia G. Costello · First published 1992Open the Tome
The Archaeology of Alta CaliforniaLeo R. Barker, Julia G. Costello · First published 1991Open the Tome
