Bibliography
http://en.wikipedia.org/wiki/Image:Map_of_territorial_growth_1775.jpg
http://en.wikipedia.org/wiki/Image:Yorktown80.JPG
The map was obtained from the National Atlas of the United States. Like most works of the U.S. federal government, works from the Atlas are in the public domain.

Online access: NationalAtlas.gov | 1970 print edition: Library of Congress, Perry-Castañeda Library
www.wikipedia.com
http://images.google.com/imgres?imgurl=http://larissmix.typepad.com/stitch_marker/images/potatoes.jpg&imgrefurl=http://larissmix.typepad.com/stitch_marker/recipes/index.html&h=262&w=400&sz=96&hl=en&start=13&tbnid=--MmC96bO7I7wM:&tbnh=81&tbnw=124&prev=/images%3Fq%3Dpotatoes%26svnum%3D10%26hl%3Den%26rlz%3D1T4GGIE_en___US211%26sa%3DN
http://images.google.com/imgres?imgurl=http://res2.agr.ca/winnipeg/storage/images/lo-res/crops/rice-dam.jpg&imgrefurl=http://res2.agr.ca/winnipeg/storage/pages/ilcr_e.htm&h=852&w=840&sz=93&hl=en&start=4&tbnid=mEZPTzP_Nj7RyM:&tbnh=145&tbnw=143&prev=/images%3Fq%3Drice%26svnum%3D10%26hl%3Den%26rlz%3D1T4GGIE_en___US211%26sa%3DN
http://images.google.com/imgres?imgurl=http://www.pspl.on.ca/Images1/lumbering.jpg&imgrefurl=http://www.pspl.on.ca/LocalHistory/Images/lumbering.htm&h=150&w=250&sz=21&hl=en&start=1&tbnid=jaa4WR4n-1PTiM:&tbnh=67&tbnw=111&prev=/images%3Fq%3Dlumbering%26svnum%3D10%26hl%3Den%26rlz%3D1T4GGIE_en___US211%26sa%3DN
http://images.google.com/imgres?imgurl=http://www.nmfs.noaa.gov/ole/images/old_fishing_boat.jpg&imgrefurl=http://www.nmfs.noaa.gov/ole/about/chron.html&h=223&w=240&sz=25&hl=en&start=4&tbnid=k8lvX-EwgDCelM:&tbnh=102&tbnw=110&prev=/images%3Fq%3Dold%2Bfishing%2Bboat%26svnum%3D10%26hl%3Den%26rlz%3D1T4GGIE_en___US211
www.shootingstarhistory.com

http://www.archives.gov/publications/record/1998/03/images/iron-workers.gif

 

http://www.uwsp.edu/cnr/uwexlakes/editorscorner/images/downloads/cattle/cattle1.JPG

 

http://www.biopsychiatry.com/tobacco/tobacco.jpg

 

http://www.oznet.ksu.edu/fieldday/kids/pictures/kidsfield600/cg_wheat_closeup.jpg

 

http://www.pspl.on.ca/Images1/lumbering.jpg

 

http://res2.agr.ca/winnipeg/storage/images/lo-res/crops/rice-dam.jpg

 

http://www.agroniche.com/images/sweet-corn-seeds-f1333.jpg

 

http://larissmix.typepad.com/stitch_marker/images/potatoes.jpg

 

http://www.archives.gov/publications/record/1998/03/images/iron-workers.gif

 

http://www.uwsp.edu/cnr/uwexlakes/editorscorner/images/downloads/cattle/cattle1.JPG

 

http://www.biopsychiatry.com/tobacco/tobacco.jpg

 

http://www.wookey.co.uk/images/paper-making.jpg

 

http://www.nescb.org/epublications/may2000/images/DressingCod.jpg

 

http://library.thinkquest.org/TQ0312380/images/cotton.jpg

 

http://www.lucidcafe.com/library/95sep/95sepgifs/elizabeth.gif