Washington (State). Department of Transportation, Washington (State). Department of Highways, Washington State Highway Commission, & Rand McNally and Company. (1937). Washington State highways.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWashington (State). Department of Transportation, Washington (State). Department of Highways, Washington State Highway Commission, और Rand McNally and Company. Washington State Highways. Olympia, 1937.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWashington (State). Department of Transportation, et al. Washington State Highways. 1937.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.