Large Collection of Star Trek (original) Novels

19 volume set. Hardcover and dust jacket. Good binding and cover. Clean, unmarked pages. Includes: 1. Enterprise: The First Adventure  (1986); 2. Crisis on Centaurus (1986); 3. How Much for Just the Planet? (1987); 4. Strangers from the Sky (1987); 5. The Vulcan Academy Murders (1988); 6. Yesterday's Son (1988); 7. Spock's World (1988); 8. Final Frontier (1988); 9. My Enemy, My Ally (1989); 10. The Lost Years (1989); 11. The Wounded Sky (1989); 12. Prime Directive (1990);13. Ghost-Walker (1991); 14. Probe (1992); 15. Best Destiny (1992); 16. Shadows on the Sun (1993); 17. Sarek (1994); 18. Vulcan's Heart (1999); 19. The Rise and Fall of Khan Noonien Singh, Vol. 2 (2002).