VINELAND by Thomas Pynchon (Penguin: $9.95). Pynchon's latest appeared after an interval of 17 years.
HARMFUL INTENT by Robin Cook (Berkley: $5.50). An anesthesiologist and a sympathetic nurse race to prove the doctor's innocence and to prevent further orchestrated deaths.
THE KEYS TO TULSA by Brian Fair Berkey (Washington Square: $6.95). Rakish Richeter Boudreau, currently down on his luck, agrees to help a shady character silence a well-connected hooker.
DEVICES AND DESIRES by P.D. James (Warner: $5.95). Adam Dalgliesh retreats to an English cottage to reflect on his newest book of poetry but is drawn into a serial-murder investigation and a nuclear-power-plant controversy.