TY  - BOOK
AU  - Gunn, James E.,
TI  - Alternate worlds: the illustrated history of science fiction 
SN  - 0891040498
U1  - 809.3876 
PY  - 1975///
CY  - Englewood Cliffs, N.J.
PB  - Prentice-Hall
KW  - Science fiction
KW  -  History and criticism
N1  - Includes index
ER  -