APA Style
      JMAIEL, M. et al (2020).
    The Impact of Digital Technologies on Public Health in Developed and Developing Countries; 18th International Conference, ICOST 2020, Hammamet, Tunisia, June 24–26, 2020, Proceedings .
    Heidelberg, Jerman:
  Springer International Publishing.
  
MLA Style
      JMAIEL, Mohamed. et al.
    "The Impact of Digital Technologies on Public Health in Developed and Developing Countries; 18th International Conference, ICOST 2020, Hammamet, Tunisia, June 24–26, 2020, Proceedings".
    
    Heidelberg, Jerman:
  Springer International Publishing,
  2020.
  Text.