File 17047 is a 336kB Acrobat (PDF) Uploaded:
Jun15 09 https://serc.carleton.edu/download/files/17047/obrienroberts09.pdf
The file is referred to in 2 pages
Provenance Monica Bruckner, Carleton College
Reuse This item is offered under a Creative Commons Attribution-NonCommercial-ShareAlike license http://creativecommons.org/licenses/by-nc-sa/3.0/ You may reuse this item for non-commercial purposes as long as you provide attribution and offer any derivative works under a similar license.