Engineering geology of the Tualatin Valley region, Oregon,
by Herbert G. Schlicker and Robert J. Deacon. Cartography by Cornelius J. Newhouse.
- Portland, 1967.
- vi, 103 p. and portfolio (4 fold. col. plates (incl. 3 maps)) illus., maps. 28 cm.
- Oregon. Dept. of Geology and Mineral Industries. Bulletin 60 .
- Bulletin (Oregon. Department of Geology and Mineral Industries) ; 60. .