Scott 1991 U.S. Specialized Catalogue, Includes Extensive Coverage of All U.S. Issues, Including

Stamp Collecting for Dummies

Sanabria

Scott 1992 U.S. Stamp Pocket Catalogue and Checklist

Scott 1992 Standard Postage Stamp Catalogue (Catalogue, 1992)

Scott Standard Postage Stamp Catalogue: Volume 4, Countries J-O (Scott Standard Postage Stamp Catalogue: Vol.4: Countries J-O)

Scott Standard Postage Stamp Catalogue

Scott 1992 Standard Postage Stamp Catalogue Volume 1 (Catalogue, 1992)

Scott 1992 U.S. Specialized Catalogue

Scott 1992 Standard Postage Stamp Catalogue, Volume 4 (Catalogue, 1992)

"By Topic" 1991 Stamp Annual