GLENCOE WORLD GEOGRAPHY TEXAS EDITION
RICHARD G.BOEHM1995 年出版818 页ISBN:0028229967
INTERPERSONAL COMMUNICATION:MAKING SOCIAL WORLDS
W.BARNETT PEARCE1994 年出版377 页ISBN:0065002881
Webster.New World Dictionary.London
Macmillan & Co.Ltd 1956.2222 年出版1702 页ISBN:
WORLD POLITICS 94/95 FIFTEENTH EDITION
HELEN E.PURKITT1994 年出版272 页ISBN:1561342904