1.
Math Contests, Grades 4, 5 & 6, Vol. 6 (School Years 2006-2007 Through 2010-2011)
by Steven R. Conrad, Daniel Fl...
ISBN: 9780940805187
List Price: $12.95
3.
Math Contests-grades 7 & 8 (Including Algebra Course 1)
by Conrad, Steven R., Flegler,...
ISBN: 9780940805194
List Price: $12.95
5.
The Science and Applications of Acoustics
by Raichel, Daniel R.
ISBN: 9781441920805
List Price: $99.00
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9.
Math Contests Grades-7 and 8 (Including Algebra Course 1)
by Conrad, Steven R., Flegler,...
ISBN: 9780940805224
List Price: $12.95
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Math Contests-Grades 4,5, And 6
by Conrad, Steven R., Flegler,...
ISBN: 9780940805217
List Price: $12.95