Du Bray E. Chiricahua peak quadrangle, Cochise County,Arizona- analytic data and geologic sample catalog / E.Du Bray,D.B.Yager,J.S.Pallister, 1993. - 22 p. - Текст : непосредственный.
Du Bray E.A. Fife Peak quadrangle Cochise County,Arizona : Analytic data and geologic sample catalog / E.A.Du Bray,D.B.Yager,J.S.Pallister, 1992. - III,A15 p. p. - Текст : непосредственный.
Du Bray E.A. Rustler Park quadrangle, Cochise County,Arizona : Analytic data and geologic sample catalog / E.A.Du Bray,D.B.Yager,J.S.Pallister, 1992. - III,B24 p. p. - Текст : непосредственный.