formula for figuring out age of collection

[steingreaberk@AEA15.K12.IA.US]

  There was a formula that allowed you to determine the age of your
collection by looking at random books (only they probably weren't
random - they were part of the formula) and using their copyright
dates.  Please point us in the right direction.  thanks


Kristin Steingreaber
AEA 15 Library Media Specialist
2814 N. Court St.
Ottumwa, IA 52501

http://proj1.aea15.k12.ia.us/mc/edcenter.htm

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