Cita APA (7th ed.)

FROST, R. (1964). Selected letters of Robert Frost. Holt, Rinehart and Winston.

Cita Chicago (17th ed.)

FROST, Robert. Selected Letters of Robert Frost. New york: Holt, Rinehart and Winston, 1964.

Cita MLA (9th ed.)

FROST, Robert. Selected Letters of Robert Frost. Holt, Rinehart and Winston, 1964.