00350cam a22001337a 4500008004000000082001300040100001500053245006600068250001300134260002700147300001000174650001500184700001700199180718b1954   xxu||||| |||| 00| 0 eng d  aF28 Au34  aAuer, J.J.  aHandbook for discussion leaderscby J.J. Auer and A.L. Edbank  aRev. ed.  aNew YorkbHarperc1954  a153p.  aDiscussion  aEdbank, A.L.