Word perfect a dictionary of current English usage
John O. E. Clark1987 年出版490 页ISBN：024554562X
A HISTORY OF THE ENGLISH LANGUAGE THIRD EDITION
ALBERT C.BAUGH THOMAS CABLE1981 年出版438 页ISBN：
A HISTORY OF THE MODERN WORLD EIGHTH EDITION
R.R.PALMER JOEL COLTON1995 年出版1259 页ISBN：
A SHORT HISTORY OF CAMBODIA FROM THE DAYS OF ANGKOR TO THE PRESENT
MARTIN F.HERZ1958 年出版141 页ISBN：
AN ELEMETARY TREATISE ON THE DYNAMICS OF A PARTICLE AND OF RIGID BODIES
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