APA   Click to copy
Smith, D. (2023). The International Research Summer School 2023. British Psychological Society, 2 October.

Chicago/Turabian   Click to copy
Smith, Donna. “The International Research Summer School 2023.” British Psychological Society 2 October (2023).

MLA   Click to copy
Smith, Donna. “The International Research Summer School 2023.” British Psychological Society, vol. 2 October, 2023.

@article{donna2023a,
  title = {The International Research Summer School 2023},
  year = {2023},
  journal = {British Psychological Society},
  volume = {2 October},
  author = {Smith, Donna}
}