Smith, Hugh P. Foraminifera from the wagonwheel formation devils den district California. - Berkeley : University of California Press, 1956. - 65-124p. : ill. ; 26cm. - Volume 32, No.2. . Subjects--Topical Terms: Foraminifere, FossilCaliforniaKern CountyPalaentologyOligocene LC Class. No.: PAM QE772.S6