To cite package 'tuber' in publications use:

Gaurav Sood (2017). tuber: Access YouTube from R. R package version 0.9.2.

Corresponding BibTeX entry:

  @Manual{,
    title = {tuber: Access YouTube from R},
    author = {Gaurav SOod},
    year = {2017},
    note = {R package version 0.9.2},
  }