| An fear as Buenos Aires | Béaslaí, Piaras S., 1881-1965 | Monograph or Collective Volume | Oifig Díolta Foillseacháin Rialtais | 1936 |
| Éigse nua-Ghaedhilge : Tráchtas ar fhilíbh agus ar fhilidheacht na Gaedhilge ó 1600 to dtí 1850. Cuid a h-aon 1600-1700, Cuid a dó 1700-1850 | Béaslaí, Piaras S., 1881-1965 | Monograph or Collective Volume | Comhlucht Oideachais na hÉireann | 1937 |
| Michael Collins : soldier and statesmen | Béaslaí, Piaras S., 1881-1965 | Monograph or Collective Volume | Talbot Press | 1937 |
| Michael Collins and the making of a new Ireland | Béaslaí, Piaras S., 1881-1965 | Monograph or Collective Volume | [s.n.] | 1926 |