Ingles, J.C. Continous automatic cyanide titration in copper-bearing gold mill le ach liquors / J.C. Ingles. - Ottawa : Dept. of Energy, Mines and Resources, Mines Branch, 1 969. - vi, 36 p. : ill. ; 28 cm. - Canada. Mines Branch. Research report ; R 212 . Bibliography: (p. 35-36) Subjects--Topical Terms: Cyanide process. Leaching. Dewey Class. No.: G CAN E65 (08) 4/212