Unknown Worlds Of Science Fiction #1 - Curtis Magazines - 1975
Unknown Worlds Of Science Fiction #2 - Curtis Magazines - 1975
Unknown Worlds Of Science Fiction #3 - Curtis Magazines - 1975
Unknown Worlds Of Science Fiction #4 - Curtis Magazines - 1975
Unknown Worlds Of Science Fiction #4 - Curtis Magazines / Marvel - 1976
Unknown Worlds Of Science Fiction #5 - Curtis Magazines - 1975
Unknown Worlds Of Science Fiction #6 - Curtis Magazines - 1975
Unknown Worlds of Science Fiction #6 - Curtis Magazines - 1975
