The internet provides the most readily available resources on referencing:

• The American Psychological Association (the APA referencing system):
  • http://www.coun.uvic.ca/learn/program/hndouts/apa_ho.html
  • http://www.psychwww.com/resource/apacrib.htm
  • http://owl.english.purdue.edu/Files/34.html
  • http://poe.acc.virginia.edu/~pm9k/info/citpage.html#bibl
  • http://www.beadsland.com/weapas/
• The Harvard system:
  • http://online.anu.edu.au/ssc/ssc/harvard.html
  • http://www.csad.coventry.ac.uk/IDN/neopraxis/harvard.html
  • http://www.cybernex.net.au/school/laalib/referenc.htm
• The Vancouver system:
  • http://www.lib.monash.edu.au/hargrave/cit-ref.htm
  • http://www.sghms.ac.uk/library/van.htm
  • http://www.lib.monash.edu.au/hargrave/web_cit.htm