Entire conference proceedings
Editor name, editor. Title of Proceedings. Number and name of conference; date of conference; place of conference. Publisher; Year. DOI/URL
Example
Sietz B et al, editors. Perfect your craft. 43rd National LOEX Library Instruction Conference; 2015 Apr 30–May 2; Denver, CO. LOEX Press, 2023.
Conference paper
Author name. Title of paper [conference paper]. In: Editor name, editors. Title of proceedings. Number and name of conference; date of conference; place of conference. Publisher; Year. Page(s). DOI/URL
Machowski L, Marwala T. Nano version control and the repo as the next data structure in computer science and artificial intelligence [conference paper]. In: Conference proceedings: 2021 Ethics and Explainability for Responsible Data Science (EE-RDS). 1st Ethics and Explainability for Responsible Data Science; 2021 Oct 27–28; Johannesburg, South Africa. IEEE; 2022. p 1–7. https://doi.org/10.1109/EE-RDS53766.2021.9708575
Many times, posters and paper presentations are not formally published. In these cases, use the designations, "Paper presented at" or "Poster session presented at" instead of "In:" to connect author and title information with conference information.