Washington (State). Department of Natural Resources. Resource Inventory Section. (1981). Spokane County data atlas. The Department.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWashington (State). Department of Natural Resources. Resource Inventory Section. Spokane County Data Atlas. Olympia: The Department, 1981.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWashington (State). Department of Natural Resources. Resource Inventory Section. Spokane County Data Atlas. The Department, 1981.
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