Washington (State). Division of Mines and Mining, Washington (State). Division of Mines and Geology, & Washington (State). Division of Geology and Earth Resources. Directory of Washington mining operations. Department of Conservation and Development, Division of Mines and Geology.
Цитирование в стиле Чикаго (17-е изд.)Washington (State). Division of Mines and Mining, Washington (State). Division of Mines and Geology, и Washington (State). Division of Geology and Earth Resources. Directory of Washington Mining Operations. Olympia, Wash.: Department of Conservation and Development, Division of Mines and Geology.
Цитирование MLA (8-е изд.)Washington (State). Division of Mines and Mining, et al. Directory of Washington Mining Operations. Department of Conservation and Development, Division of Mines and Geology.