1.Image of camera obscura at /28146/history.html from The Photographic Historical Society of Canada http://web.onramp.ca/phsc, Bob Carter,phsc@onramp.ca, June 1999. E-mail message.
2.Image of Robert Boyle at /28146/history.html from OMSI Post Office http://www.omsi.edu/online/postoffice, Mark Chen, Mark.Chen@omsi.edu, March 2000. E-mail message.
3.Image of Mathew Brady at /28146/history.html from Civil War Photography http://rs6.loc.gov:8081/ammem/cwphome.html, Guy Lamolinara, glam@loc.gov, March 2000. E-mail message.
1."Cannon U.S.A., Inc." 1999 <http://www.usa.canon.com/camcambin/cameras/35mm/compact/ssz115.html> (July 1999)
2."CCCP Photographic" <http://group4.cnchost.com/1cccp> (July 1999)
2.Coleman, David. "Photography Collection" UT Library Online Oct. 6 1998. <http://www.lib.utexas.edu/hrc/photo.html> (June 1999)
4.Fox Talbot Museum. "Fox Talbot Museum of Photography" <http://www.r-cube.co.uk/fox-talbot/> (June 1999)
5."Focus on Photography" az us webworks. 1999 <http://azuswebworks.com/photography> (July 1999)
6.Leggat, Robert. "The Beginnings of Photography" A History of Photography. June 1999. <http://www.kbnet.co.uk/rleggat/photo> (June 1999)
7.Logan, R. "Home Page of R.Logan" Jan. 10 1998. <http://edie.cprost.sfu.ca/~rhlogan> (June 1999)
8.OMSI Post Office. March 2000. <http://www.omsi.edu/online/postoffice/> (March 2000)
9.The Photographic Historical Society of Canada. 1999 <http://web.onramp.ca/phcs> (June 1999)
Electronic Sources
E-Mail Messages
1. Carter, Robert. qfancy@idirect.com "info on camera obscura" 24 June. 1999. Personal E-mail (24 June. 1999.)
Electronic Sources
Publications on CD-ROM, Diskette, or Magnetic Tapes
1.Galassi, Peter. "History and Art of Photography." Groliers Multimedia Encyclopedia. Vers. 7.0.2 Grolier Electronic Publishing, Inc., 1995.
2.Condax, Philip. "Camera." Groliers Multimedia Encyclopedia. Vers. 7.0.2 Grolier Electronic Publishing, Inc., 1995.