In association with Amazon.com
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71.
List Price: $18.99Amazon.com's Price: $13.18 You Save: $5.81 (31%)as of 12/17/2009 02:19 EST
73.
Amazon.com's Price: $7.95 as of 12/17/2009 02:19 EST
75.
List Price: $16.95Amazon.com's Price: $11.53 You Save: $5.42 (32%)as of 12/17/2009 02:19 EST
76.
Amazon.com's Price: $45.00 as of 12/17/2009 02:19 EST
77.
List Price: $17.95Amazon.com's Price: $12.21 You Save: $5.74 (32%)as of 12/17/2009 02:19 EST
78.
Amazon.com's Price: $38.00 as of 12/17/2009 02:19 EST
79.
Amazon.com's Price: $5.95 as of 12/17/2009 02:19 EST
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as of 12/17/2009 02:19 EST
by: Patrick J. Montana Ph.D., Bruce H. Charnov Ph.D.
May 02, 2008