explorer101 said:
http://www.cic.gc.ca/english/citizenship/proof-eligibility.asp
http://www.cic.gc.ca/english/citizenship/rules_2009.asp (Section "What do I need to prove that I am a Canadian citizen?")
http://www.ppt.gc.ca/info/section4.aspx
http://publications.gc.ca/Collection-R/LoPBdP/BP/bp445-e.htm#B.%20Natural-Born%20Citizens%28txt%29
http://www.cbc.ca/news/canada/story/2012/03/02/birth-immigration-citizenship.html
http://www.capitalnews.ca/index.php/news/citizenship
http://www.canadavisa.com/born-canadian-airspace-canada-citizen.html
http://en.wikipedia.org/wiki/Canadian_nationality_law#Birth_in_Canada
Enough sources for you? One parent must be Canadian ONLY IF THE CHILD IS BORN OUTSIDE CANADA.