2005 Year-End Tax Management For Farmers and Ranchers, Parman Green,
http://agebb.missouri.edu/agtax/2005est1.pdf

Income Tax Management for Farmers, George F. Patrick, Purdue University
http://www.agecon.purdue.edu/extension/pubs/taxplanning.asp

Farmers Tax Guides --IRS (also available in paper at your local extension office)
http://www.irs.gov/publications/p225/index.html

IRS Tax Tips - IRS
http://www.irs.gov/businesses/small/industries/content/0,,id=100092,00.html