Washington State Association of County Commissioners. Convention, Washington State Association of County Engineers. Convention, & Washington State Association of County Administrators. Convention. (1952). Convention yearbook. The Associations.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWashington State Association of County Commissioners. Convention, Washington State Association of County Engineers. Convention, और Washington State Association of County Administrators. Convention. Convention Yearbook. [Olympia, Wash.?]: The Associations, 1952.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWashington State Association of County Commissioners. Convention, et al. Convention Yearbook. The Associations, 1952.
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