I am writing a post-doc research paper. I want to cite research material from this meeting presentation: https://www.sitcancer.org/HigherLogic/System/DownloadDocumentFile.ashx?DocumentFileKey=0d2d7f53-3673-7aaf-3a80-518e0990e918&forceDialog=1
This meeting presentation is from the "SITC 2015 Workshop on New Perspectives for Target Antigens in the Changing Cancer Immunotherapy Landscape." Link here: https://www.sitcancer.org/communities/community-home/librarydocuments/viewdocument?DocumentKey=c4c7b592-7aae-4793-bf5a-1d136e87af3d
How should I cite material from these meetings/presentations?