- Collecting World Coins: More Than a Century of Circulating Issues 1901-Present (Collecting World Coins)
- Standard Catalog of World Coins 1901-2000 (Standard Catalog of World Coins)
- Standard Catalog of World Coins 1801-1900 (Standard Catalog of World Coins 19th Century Edition 1801-1900)
- Collecting World Coins: More Than a Century of Circulating Issues : 1901-Present (Collecting World Coins)
- Standard Catalog of World Paper Money: Modern Issues 1961-1999