The Penguin dictionary of contemporary American history
1945 to the present1997 年出版642 页ISBN：0140513728
DICTIONARY OF AMERICAN PENOLOGY AN INTRODUCTORY GUIDE
VERGIL L.WILLIAMS2222 年出版531 页ISBN：031320327X
THIN PAPER WEBSTER'S NEW COLLEGIATE DICTIONARY
G.BELL & SONS LTD1960 年出版1175 页ISBN：
