Lua APA (7ú heag.)
Sheehy, D. G., Richardson, M., & Faggen, R. (2014). The letters of Robert Frost. Belknap Press of Harvard University Press.
Lua i Stíl Chicago (17ú heag.)
Sheehy, Donald Gerard, Mark Richardson, agus Robert Faggen. The Letters of Robert Frost. Cambridge, Massachusetts ; London, England: Belknap Press of Harvard University Press, 2014.
Lua MLA (9ú heag.)
Sheehy, Donald Gerard, et al. The Letters of Robert Frost. Belknap Press of Harvard University Press, 2014.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.