Rau, W. W. (1993). Pioneering the Washington Territory: Reminiscences of Willis and Mary Ann Boatman, with a review of historical events of early territorial days. Historic Fort Steilacoom Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRau, Weldon W. Pioneering the Washington Territory: Reminiscences of Willis and Mary Ann Boatman, with a Review of Historical Events of Early Territorial Days. [Steilacoom, Wash.?]: Historic Fort Steilacoom Association, 1993.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRau, Weldon W. Pioneering the Washington Territory: Reminiscences of Willis and Mary Ann Boatman, with a Review of Historical Events of Early Territorial Days. Historic Fort Steilacoom Association, 1993.
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