Maytin, I. L., & Gilkeson, R. H. (1962). State of Washington engineering soils manual: Soils of Spokane County. Washington State University.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMaytin, Iury L., और Raymond H. Gilkeson. State of Washington Engineering Soils Manual: Soils of Spokane County. Pullman: Washington State University, 1962.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMaytin, Iury L., और Raymond H. Gilkeson. State of Washington Engineering Soils Manual: Soils of Spokane County. Washington State University, 1962.
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