Recent advances in thin films
  MLA
  Kumar, and D. K Aswal. Recent Advances In Thin Films. Springer Singapore, 2020.
  APA
  Kumar, K., & Aswal, D. K. (2020). Recent advances in thin films. Springer Singapore.
  Chicago
  Kumar, and D. K Aswal. Recent Advances In Thin Films. : Springer Singapore, 2020.