Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"United States. Census Office and North, S. N. D. and Petroff, Ivan and Elliott, Henry W. and Hall, Henry","The newspaper and periodical press . Alaska : its population, industries, and resources . The seal islands of Alaska . Ship-building industry in the United States",,Norman Ross,1991,Census of the United States,,0883544318,,https://cir.nii.ac.jp/crid/1130282272202847744