See this example properly formatted in the QUT Cite tool.
Standard in-text citation examples are in Getting started - In-text citation.
Author. Year. "Title of paper." Paper presented at Conference Title, location, Month Day, Year. http://www.xxxxxxx.
Hulls, Rob. 2013. "Adversarial justice: Pure gold or fool's gold?" Paper presented at Broadening Restorative Perspectives: An International Conference, Melbourne, June 18, 2013. https://www.varj.asn.au/papers/Adversarial%20Justice,%20Pure%20Gold%20Hulls.pdf.
Conference paper published in a journal? Use the examples for Articles - Print and Articles - Electronic.
Author. Year. "Title of paper." In Title of Proceedings, location, Month Day, Year, edited by Editor. Publisher.
Every, Danielle. 2007. "Critical discursive methods as a resource in education and anti-racism: Potentials and pitfalls." In Psychology and Indigenous Australians: Teaching, Practice and Theory: Proceedings of the Inaugural Annual Conference, Adelaide, South Australia, July 12–13, 2007, edited by Rob Ranzijn, Lisa Hodgson, and Giovanina Severino. University of South Australia.
Papers published in Proceedings are cited similarly to a chapter in an edited book.
Location and date: Not all information is always available. Include as much detail as possible.