00983cam a2200325 i 4500 546469562 TxAuBib 20220118120000.0 210909s2021||||||||||||||||||||||||eng|u 2021044262 9781982125769 hardcover 1982125764 hardcover TxAuBib rda Williamson, Michael Z. That was now, this is then / Michael Z. Williamson. New York, NY : Distributed by Simon & Schuster, 2021. 536 pages ; 24 cm. txt rdacontent n rdamedia nc rdacarrier "A Baen Books original.". 20220118. Time travel Fiction. Paleolithic period Fiction. Time-travel fiction. Novels. Science fiction. Fiction. TXDRI