Bibliografía (11 obras)
500 years of golf balls
1997
Universal Price Guide to Nippon Porcelain
1986
Hummel art II
1981
Hummel art
1978
Limited edition collectibles
1974
Art glass handbook with prices
1972
Cut Glass Handbook and Price Guide
1970
Price guide [no. 2] to carnival glass
1969
Current cut glass prices
1965
Carder's Steuben glass
1964
Art glass prices
1960
