20thcentury a anarchism autobiography biography business collegesuccess communism economichistory economics english europeanhistory fascism gametheory general germany h historical history historyofeconomics historyoftheamericas holocaust italy jewishhistory judaism l linguistics literary m macroeconomictheory mathematics mathematicsgeneral militaryhistory modern modernhistory p philosophers philosophy political politicalscience race/class/gender religion renaissance socialclasses socialism socialsciences sociology statistics studyaids studyaidsgeneral surveys syntax theory totalitarianism worldwarii xa xf xo xr xt y