2009年《古今世界金币》第8版,Arthur. L Friedberg 及Ira S.Friedberg著,50週年纪念版,钱币爱好者必入之选。 Gold Coins Of The World - From Ancient Times To The Present 8th edition, by Arthur. L Friedberg and Ira S.Friedberg, 2009, 50th Anniversary Edition,a great reference material for coin lovers.