Cita APA (7th ed.)

Frost, R., & Untermeyer, L. (1963). The letters of Robert Frost to Louis Untermeyer ([1st ed.].). Holt, Rinehart and Winston.

Cita Chicago (17th ed.)

Frost, Robert, i Louis Untermeyer. The Letters of Robert Frost to Louis Untermeyer. [1st ed.]. New York: Holt, Rinehart and Winston, 1963.

Cita MLA (8th ed.)

Frost, Robert, i Louis Untermeyer. The Letters of Robert Frost to Louis Untermeyer. [1st ed.]. Holt, Rinehart and Winston, 1963.