Electronic
Sources
Text or Multimedia from Web Pages, FTP sites, Telnet
1.http://www.museum.state.il.us/exhibits/larson/canis.html
2.http://fox.nstn.ca/~ccwr/secret/wolfprint99/dire.html
3.http://cedar.evansville.edu/~ck6/bstud/direwolf.html
4.http://www.creswell.co.uk/touch.it/iceage/art.htm
5.http://www.museum.state.il.us/exhibits/ice_ages/
6.http://www.museum.state.il.us/exhibits/ice_ages/why_4_cool_periods.html
7.http://www.museum.state.il.us/exhibits/ice_ages/why_ice_ages_1.html
8.http://www.museum.state.il.us/exhibits/ice_ages/why_glaciations1.html
9.http://museum.state.il.us/exhibits/larson/mammut.html
10.http://www.emporia.edu/earthsci/student/leiszler/pleist.htm
Electronic
Sources
Publications on CD-ROM, Diskette, or Magnetic Tapes
1.Encarta96'
2.World Book Millenium
Printed
Materials
Part of a book
1.Prehistoric life by William Lindsay; photographed by Harry Taylor
2.World Book Encyclopedia
Software, Services and Graphic Sources