%0 Journal Article %T U.S. Presidential elections 1968-80: A spatial analysis %A Poole, Keith T. %A Rosenthal, Howard %D 1984 %P 282-312 %J American Journal of Political Science %V 28 %I 2 %2 ISSN: 0092-5853 %U http://www.jstor.org/stable/2110874