Washington (State). Division of Geology and Earth Resources & Stoffel, K. L. (1991). Geologic map of Washington, northeast quadrant. Washington Division of Geology and Earth Resources.
Chicago Style (17th ed.) CitationWashington (State). Division of Geology and Earth Resources and Keith L. Stoffel. Geologic Map of Washington, Northeast Quadrant. [Olympia, Wash.]: Washington Division of Geology and Earth Resources, 1991.
MLA引文Washington (State). Division of Geology and Earth Resources and Keith L. Stoffel. Geologic Map of Washington, Northeast Quadrant. Washington Division of Geology and Earth Resources, 1991.
警告:這些引文格式不一定是100%准確.