II.—Notes on the Geology of Chitral, Gilgit, and the Pamirs. By H. H. Hayden, C.I.E., F.R.S., Director Geological Survey of India. Rec. Geol. Surv. India, vol. xlv, pt. iv, pp. 271–335, 1915
W. H. W.. "II.—Notes on the Geology of Chitral, Gilgit, and the Pamirs. By H. H. Hayden, C.I.E., F.R.S., Director Geological Survey of India. Rec. Geol. Surv. India, vol. xlv, pt. iv, pp. 271–335, 1915." Geological Magazine 4.04 (1917) 175