Tomarts Encyclopedia & Price Guide to Action Figure Collectibles, Vol. 3: Star Wars-Zybots: Bill Sikora, Tom Tumbusch: 9780914293323: Amazon.com: Books
List of Star Wars Figures, Toys, Collectibles & Value | Self
The Ultimate Guide to Vintage Star Wars Action Figures 1977-1985 by Mark Bellomo | Goodreads
Official Price Guide to Star Wars Memorabilia (Official Price Guide to Star Wars Collectibles): Beckett, Jeremy: 9780375720758: Amazon.com: Books
Vintage Star Wars Price Guide - Part Three - Collectors Club of Great Britain
Complete Star Wars collection sold for £2,500 - BBC News