Washington (State). Division of Geology and Earth Resources, Association of Engineering Geologists. Washington State Section, & Galster, R. W. (1989). Engineering geology in Washington. Washington State Dept. of Natural Resources, Division of Geology and Earth Resources.
Chicago Style (17th ed.) CitationWashington (State). Division of Geology and Earth Resources, Association of Engineering Geologists. Washington State Section, and Richard W. Galster. Engineering Geology in Washington. [Olympia, WA] (Mail Stop PY-12, Olympia 98504): Washington State Dept. of Natural Resources, Division of Geology and Earth Resources, 1989.
MLA引文Washington (State). Division of Geology and Earth Resources, et al. Engineering Geology in Washington. Washington State Dept. of Natural Resources, Division of Geology and Earth Resources, 1989.