Incoming Resources
- 2019 standard catalog of world coins, Thomas Michael, senior editor & market analyst ; Tracy L. Schmidt, editor ; Richard Giedroyc, U.S. market analyst
- Standard catalog of world coins, 1901-2000, George S. Cuhaj, editor ; special contributors: Mahdi Bseiso, Ivan Rakitin, Joeseph Zaffern
- 2016 standard catalog of world coins, George S. Cuhaj, editor