<br>
== References ==
<nocite>{{Ref|Book=Bailey 1980}}BAILEY1980{{Ref|Book=Bersu & Wilson 1966}}BERSU1966{{Ref|Book=Cameron 2000}}CAMERON2000{{Ref|Book=Cameron 2003}}CAMERON2003{{Ref|Book=Cameron 2007}}CAMERON2007{{Ref|Book=Hinton 2005}}HINTON2005{{Ref|Book=Okasha 1992}}OKASHA1992{{Ref|Book=Vince 1991}}VINCE1991{{Ref|Book=Wilson 1965}}WilSON1965{{Ref|Book=Wilson 1985}}WILSON1985WHEELER1927{{Ref|Book=Wheeler 1927}}WHEELER1935</nocite><biblio force{{Ref|Book=false>#[[Template:Bib]]</biblio>Wheeler 1935}}
<HarvardReferences />