Bergh, H. (1963). Upward trails. Review and Herald.
Lua i Stíl Chicago (17ú heag.)Bergh, Herri. Upward Trails. Review and Herald, 1963.
Lua MLA (9ú heag.)Bergh, Herri. Upward Trails. Review and Herald, 1963.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.