COMMUNISM THE STORY OF THE IDEA AND ITS IMPLEMENTATION
JAMES R.OZINGA1987 年出版252 页ISBN：0131539663
THE AMERICAN RURAL SCHOOL:ITS CHARACTERISTICS
ITS FUTURE AND ITS PROBLEMS1918 年出版361 页ISBN：
THE EARTH'S DYNAMIC SYSTEMS A TEXTBOOK IN PHYSICAL GEOLOGY FIFTH EDITION
W.KENNETH HAMBLIN1989 年出版576 页ISBN：002349381X
THE NATIONAL CURRICULUM AND ITS EFFECTS
EDITED BY CEDRIC CULLINGFORD AND PAUL OLIVER2222 年出版216 页ISBN：9781138724419
KINGDOMS & DOMAINS AN ILLUSTRATED GUIDE TO THE PHYLA OF LIFE ON EARTH
LYNN MARGULIS AND MICHAEL J.CHAPMAN2010 年出版731 页ISBN：0123736218
