《1978年美国标準纸钞目录》,斯科特出版社(Scott Publishing Co.),便携版,图文并茂,保存完好。Standard 1978 U.S. Paper Money Catalogue, published by Scott Publishing Co., a nice pocket-sized handbook with illustrations, World Coin Catalogue, Twentieth Century, Fourth Edition, by Gunter Schon, published by Barrie and Jenkins, both well preserved