Intelligent Tutoring Systems
  MLA
  Scott Crossley, and Elvira Popescu. Intelligent Tutoring Systems. Springer International Publishing, 2022.
  APA
  Scott Crossley, S. Crossley, & Popescu, E. (2022). Intelligent Tutoring Systems. Springer International Publishing.
  Chicago
  Scott Crossley, and Elvira Popescu. Intelligent Tutoring Systems. : Springer International Publishing, 2022.