Goetzmann, W. H. (1988). Looking at the land of promise: Pioneer images of the Pacific Northwest. Washington State University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGoetzmann, William H. Looking at the Land of Promise: Pioneer Images of the Pacific Northwest. Pullman, Wash.: Washington State University Press, 1988.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGoetzmann, William H. Looking at the Land of Promise: Pioneer Images of the Pacific Northwest. Washington State University Press, 1988.
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