Sola, R., & Kiefer, D. (2023). Welcome to our world, Professor Bretz: Spokane and the Inland Empire ice age floods controversy, 1920-1930. Westerners, Spokane Corral.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSola, Richard, और Dean Kiefer. Welcome to Our World, Professor Bretz: Spokane and the Inland Empire Ice Age Floods Controversy, 1920-1930. [Spokane, Washington]: Westerners, Spokane Corral, 2023.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSola, Richard, और Dean Kiefer. Welcome to Our World, Professor Bretz: Spokane and the Inland Empire Ice Age Floods Controversy, 1920-1930. Westerners, Spokane Corral, 2023.
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