00527nam a2200205Ia 4500003000400000005001700004008004100021020001800062040000700080041000800087082002600095100002100121245006900142250000600211260003100217300001500248365001400263650002200277650002200299OSt20230417163048.0210423s2010 xx 000 0 und d a9780872897786 cAL aeng a324.730973 223bWESD aWEST (Darrell M) aAir wars: television advertising in election campaigns 1952-2008 a5 aWashingtonbCQ Pressc2010 axv,240bPB b2161cINR aPolitical Process aPolitical Science