ebrary, Inc, Goble, D., & Hirt, P. W. (1999). Northwest lands, northwest peoples: Readings in environmental history. University of Washington Press.
芝加哥风格引文ebrary, Inc, Dale Goble, 与 Paul W. Hirt. Northwest Lands, Northwest Peoples: Readings in Environmental History. Seattle, Wash.: University of Washington Press, 1999.
MLA引文ebrary, Inc, et al. Northwest Lands, Northwest Peoples: Readings in Environmental History. University of Washington Press, 1999.
警告：这些引文格式不一定是100％准确.