To purchase the 2001 Crop Diagnostic Notebook, please call the Extension Distribution Center at (515) 294-5247. The cost for the notebook is $50 plus shipping. If you have a notebook from the 2000 ISU Field Extension Education Laboratory or a notebook that was updated in 2000, you may purchase publications needed to bring your notebook up to the 2001 standards. The price for the update is $20. To order the 2001 updates, send a check payable to Iowa State University and mail it to Agribusiness Education Program, Iowa State University, 2104 Agronomy Hall, Ames, IA 50011.