To cite 'anominate' in publications use:

Royce Carroll, Christopher Hare, Jeffrey B. Lewis, James Lo, Keith T. Poole and Howard Rosenthal (2017). Alpha-NOMINATE: Ideal Point Estimator. R package version 0.6. URL

Corresponding BibTeX entry:

    title = {Alpha-NOMINATE: Ideal Point Estimator},
    author = {Royce Carroll and Christopher Hare and Jeffrey B. Lewis
      and James Lo and Keith T. Poole and Howard Rosenthal},
    year = {2017},
    note = {R package version 0.6},