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Loos's books include ''The American Presidents'' (1986), with co-authors Tracy Irons-Georges and Frank Northern Magill, and ''Great Events from History: North American Series, 1895-1955'', the latter also co-authored by Frank Magill.<ref>{{cite web|

Loos's books include ''The American Presidents'' (1986), with co-authors Tracy Irons-Georges and Frank Northern Magill, and ''Great Events from History: North American Series, 1895-1955'', the latter also co-authored by Frank Magill.<ref>{{cite web|

url=http://www.bookfinder.com/author/john-l-loos/|title=John L. Loos|publisher=Salem Press|accessdate=October 1, 2011}}</ref>In 1964, Loos published a six-page article on Lewis and Clark, "They Opened the Door to the West", suitable as a lecture guide.<ref>{{cite web|url=http://books.google.com/books/about/They_opened_the_door_to_the_west.html?id=n-oacgAACAAJ|title="They Opened the Door to the West"|publisher=books.google.com|accessdate=October 1, 2011}}</ref>

url=http://www.bookfinder.com/author/john-l-loos/|title=John L. Loos|publisher=Salem Press|accessdate=October 1, 2011}}</ref>In 1964, Loos published a six-page article on Lewis and Clark, "They Opened the Door to the West", suitable as a lecture guide.<ref>{{cite web|url=http://books.google.com/books/about/They_opened_the_door_to_the_west.html?id=n-oacgAACAAJ|title="They Opened the Door to the West"|publisher=books.google.com|accessdate=October 1, 2011}}</ref>In 1959, the LSU Press published Loos's ''Oil on Stream! A History of Interstate Oil Pipe Line Company, 1909-. 1959.''<ref>{{cite web|url=http://www.jstor.org/pss/3101402|title=''Oil on Stream!''|publisher=jstor.org|accessdate=October 2, 2011}}</ref>