Thayer, R. I. (1946). A comparative study of the tax system of the State of Washington.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रThayer, Ralph Ira. A Comparative Study of the Tax System of the State of Washington. [Olympia, 1946.
एमएलए (8वां संस्करण) प्रशस्ति पत्रThayer, Ralph Ira. A Comparative Study of the Tax System of the State of Washington. 1946.
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