Barlow, E. A., & McDougall, J. (1984). A quota of Qualtroughs: Early settlers to New Zealand from the Isle of Man. Elizabeth A. Barlow.
Lua i Stíl Chicago (17ú heag.)Barlow, Elizabeth A., agus Joy McDougall. A Quota of Qualtroughs: Early Settlers to New Zealand from the Isle of Man. Matamata: Elizabeth A. Barlow, 1984.
Lua MLA (9ú heag.)Barlow, Elizabeth A., agus Joy McDougall. A Quota of Qualtroughs: Early Settlers to New Zealand from the Isle of Man. Elizabeth A. Barlow, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.