Cita APA (7a ed.)

Frost, R. (1990). Poems by Robert Frost. Signet Classic.

Cita Chicago Style (17a ed.)

Frost, Robert. Poems by Robert Frost. Estados Unidos: Signet Classic, 1990.

Cita MLA (9a ed.)

Frost, Robert. Poems by Robert Frost. Signet Classic, 1990.