Livres de grading
4 livres dans ce genre

Quality and grading of carcases of meat animals
S. Morgan Jones
Pas de note

Log scaling and timber cruising
John F. Bell
Pas de note

Live animal carcass evaluation and selection manual
Donald L. Boggs
Pas de note

The official American Numismatic Association grading standards for United States coins
American Numismatic Association.
Pas de note