To cite package ‘sangerseqR’ in publications use:

  Jonathon T Hill, Bradley L Demarest, Brent W Bisgrove, Yi-chu Su,
  Megan Smith and H. Joseph Yost (2014). Poly peak parser: Method and
  software for identification of unknown indels using sanger sequencing
  of polymerase chain reaction products. Developmental Dynamics
  243:1632-1636

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Poly peak parser: Method and software for identification of unknown indels using sanger sequencing of polymerase chain reaction products},
    author = {Jonathon T Hill and Bradley L Demarest and Brent W Bisgrove and Yi-chu Su and Megan Smith and H. Joseph Yost},
    year = {2014},
    journal = {Developmental Dynamics},
    doi = {10.1002/dvdy.24183.},
  }