Cita APA (7th ed.)
Sheehy, D. G., Richardson, M., & Faggen, R. (2014). The letters of Robert Frost. Belknap Press of Harvard University Press.
Cita Chicago (17th ed.)
Sheehy, Donald Gerard, Mark Richardson, i Robert Faggen. The Letters of Robert Frost. Cambridge, Massachusetts ; London, England: Belknap Press of Harvard University Press, 2014.
Cita MLA (9th ed.)
Sheehy, Donald Gerard, et al. The Letters of Robert Frost. Belknap Press of Harvard University Press, 2014.
Atenció: Aquestes cites poden no estar 100% correctes.