TY  - BOOK
AU  - Silverberg,Robert
TI  - A time of changes
AV  - PZ4.S573PS3569.I472 Tk
U1  - 813/.5/4 
PY  - 1971///]
CY  - Garden City, N.Y.
PB  - N. Doubleday
KW  - Science fiction, American
KW  - Science fiction
KW  - gsafd
N1  - "First serialized in Galaxy magazine."
UR  - http://www.archive.org/details/timeofchanges00silv
UR  - http://www.openlibrary.org/books/OL5201878M
ER  -