Washington (State). Office of Program Planning and Fiscal Management. (1972). 1970 census data book.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWashington (State). Office of Program Planning and Fiscal Management. 1970 Census Data Book. [Olympia], 1972.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWashington (State). Office of Program Planning and Fiscal Management. 1970 Census Data Book. 1972.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.