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.