Washington Association of County Officials, Washington State Association of County Officials, & Municipal Research and Services Center of Washington. Directory of Washington county officials. Washington Association of County Officials : Washington State Association of Counties.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWashington Association of County Officials, Washington State Association of County Officials, और Municipal Research and Services Center of Washington. Directory of Washington County Officials. Olympia, WA: Washington Association of County Officials : Washington State Association of Counties.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWashington Association of County Officials, et al. Directory of Washington County Officials. Washington Association of County Officials : Washington State Association of Counties.