Gray, Charles H., and Glenn W.Gregory. Military spending and Senate voting: a correlational study ," Journal of Peace Research, 1969, 1, 44-55.
2.
Moyer, H.W.A regression analysis of defense and foreign policy roll calls in the 90th Congress. New Haven, Conn.: Yale University Political Science Department (manuscript), 1970 .
3.
Russett, Bruce M.What Price Vigilance? The Burdens of National Defense. New Haven: Yale University Press, 1970.