THE CAMBRIDGE HANDBOOK OF ENDANGERED LANGUAGES
PETER K.AUSTIN2011 年出版567 页ISBN:
THE SCIENTIFIC STUDY & TEACHING OF LANGUAGES
HAROLD E. PALMER1937 年出版328 页ISBN:
MANUAL OF FOREIGN LANGUAGES FOURTH EDITION
GEORG F. VON OSTERMANN1952 年出版414 页ISBN:
CONCISE ENCYCLOPEDIA OF LANGUAGES OF THE WORLD COORDINATING EDITOR
KEITH BROWN AND CO-EDITIOR2009 年出版1283 页ISBN:0080877745
DECLARATIVE AND PROCEDURAL DETERMINATS OF SECOND LANGUAGES
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Painless English for speakers of other languages
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