To cite package 'csvy' in publications use:

Leeper TJ (2018). csvy: Import and Export CSV Data with a YAML Metadata Header. R package version 0.3.0.

Corresponding BibTeX entry:

  @Manual{,
    title = {csvy: Import and Export CSV Data with a YAML Metadata
      Header},
    author = {Thomas J. Leeper},
    year = {2018},
    note = {R package version 0.3.0},
  }