http://www.calpear.com/

http://members.ozemail.com.au/~hsca/Lost_pears.html

http://aggie-horticulture.tamu.edu/extension/homefruit/pear/pear.html

http://www.findarticles.com/cf_dls/m1041/n11_v76/21280801/p1/article.jhtml

http://almanac.com/cooks/pearcrisp.html

http://www.thefruitpages.com/pears.shtml

http://www.ento.vt.edu/Fruitfiles/pear-hort.html

http://www.fruitco.com/fruit/pears.htm

http://www.azuswebworks.com/html/ppear.htm