http://en.wikipedia.org/International_Harvester

http://www.tractordata.com/farm-tractors/tractor-brands/ih/ih-tractors.html

http://www.antiquefarming.com/internationalharvester.html

http://www.tractordata.com/farm-tractors/000/3/3/333-international-harvester-454.html

http://www.internationalharvester.com/

http://www.antiquefarming.com/farmall.html

http://www.toytractorshow.com/InternationalHarvester.htm

http://www.psep.biz/store/international_harvester_tractors-agricultural_starter_motors.htm

http://search.barnesandnoble.com/International-Harvester-Tractors/Randy-Leffingwell/e/9780760319246

http://www.amazon.com/exec/obidos/ASIN/0760306826/tractordata-20