Our examples are based on the APA. (2010). Publication Manual of the American Psychological Association (6th ed.) Washington DC: APA.
The APA blog is an excellent resource for guidance on referencing unusual items and finding solutions to your other APA referencing questions.
You can also use the Academic Skills Unit's LEO resources on academic writing, referencing, and academic integrity to develop your skills. There are workshops and consultations available where you can get help.