References must be reliable sources such as newspapers books or trustworthy websites like BBC CNN News For how see below How references work Simple references These require two parts a Chzz is 98 years old The book of Chzz Aardvark Books 2009 He likes tea Tea website b A section called References with the special code reflist References reflist an existing article is likely to already have one of these sections To see the result of that please look at user chzz demo simpleref Edit it and check the code perhaps make a test page of your own such as user reftest and try it out Named references Chzz was born in 1837 The book of Chzz Aardvark Books 2009 Chzz lives in Footown Note that the second usage has a and no closing ref tag This needs a reference section as above please see user chzz demo namedref to see the result Citation templates You can put anything you like between and but using citation templates makes for a neat consistent look Chzz has 37 Olympic medals Citation last Smith first John title Olympic medal winners of the 20th century publication date 2001 publisher Cambridge University Press page 125 isbn 0 521 37169 4 Please see user chzz demo citeref to see the result For more help and tips on that subject see user chzz help refs