APA Style
      Martín-Vide, C. et al (2018).
    Statistical Language and Speech Processing: 6th International Conference, Slsp 2018, Mons, Belgium, October 15-16, 2018, Proceedings (Paperback) .
    :
  Springer.
  
MLA Style
      Martín-Vide, Carlos. et al.
    "Statistical Language and Speech Processing: 6th International Conference, Slsp 2018, Mons, Belgium, October 15-16, 2018, Proceedings (Paperback)".
    
    :
  Springer,
  2018.
  Text.