THE WORLD OF LEARNING 1989 THIRTY-NINTH EDITION
AUSTRALIA AND NWE ZEALAND1989 年出版1988 页ISBN：0946653461
THE COST OF NOT EDUCATING THE WORLD'S POR THE NW ECONOMICS OF LEARNING
LYNN ILON2015 年出版232 页ISBN：1138887497
THE WORLD OF LEARNING 1995 FORTY-FIFTH EDITION 1
AUSTRALIA AND NWE ZEALAND1995 年出版698 页ISBN：1857430026
THE WORLD OF LEARNING 1995 FORTY-FIFTH EDITION 2
AUSTRALIA AND NWE ZEALAND1995 年出版1414 页ISBN：1857430026
THE WORLD OF LEARNING 1995 FORTY-FIFTH EDITION 3
AUSTRALIA AND NWE ZEALAND1995 年出版2123 页ISBN：1857430026
THE WORLD OF LEARNING 1980-81 31ST EDITION VOLUME TWO
ROMANIA ZIMBABWE1980 年出版2110 页ISBN：0905118529
