HOW TO BE A MORE SUCCESSFUL LANGUAGE LEARNER:TOWARD LEARNER AUTONOMY SECOND EDITION
JOAN RUBIN IRENE THOMPSON1994 年出版120 页ISBN:0838447341
AMERICAN PASSAGES:A HISTORY OF THE UNITED STATES VOLUME Ⅱ:SINCE 1863 SECOND EDITION
EDWARD L.AYERS AND OTHERS2004 年出版959 页ISBN: