Worlds of If Super Pack #3

by H. B. Fyfe , Milton Lesser , Arthur Dekker Savage , August Derleth , Alan Edward Nourse , James Blish , Jr. James McKimmey , Keith Laumer , Mari Wolf , Boyd Ellanby , Alvin Heiner , Don Berry , Mack Reynolds , Kenneth O'Hara , Dave Dryfoos , Jim Harmon , Mark Clifton , R. A. Lafferty , R. R. Winterbotham , Richard Wilson , Alex Apostolides , Alfred Coppel , Frank M. Robinson , Ralph Sholto , Russell Burton , Robert Moore Williams , Charles Fontenay , Winston Marks , Jerome Bixby , Andersen Horne , L. Major Reynolds , Jesse F. Bone