World's Best Science Fiction is a 4-book series with 4 released primary works first released in 1965 with contributions by Donald A. Wollheim.
#1 of 4 in World's Best Science Fiction
1965 • 1 Reader • 288 pages • 3
#2 of 4 in World's Best Science Fiction
1966 • 1 Reader • 287 pages
#5 of 4 in World's Best Science Fiction
1969 • 1 Reader • 352 pages • 3
#6 of 4 in World's Best Science Fiction
1970 • 1 Reader • 349 pages • 3