The Nature of a Whewellite-Rich Rock Crust Associated with Pictographs in Southwestern Texas

Abstract

Jon Russ, Warna D. Kaluarachchi, Louise Drummond, Howell G. M. Edwards, The Nature of a Whewellite-Rich Rock Crust Associated with Pictographs in Southwestern Texas, Studies in Conservation, Vol. 44, No. 2 (1999), pp. 91-103