Citação norma APA

Frost, R. (1946). The poems of Robert Frost: With an introductory essay, "The constant symbol," by the author. New York: Modern Library.

Citação norma Chicago

Frost, Robert. The Poems of Robert Frost: With an Introductory Essay, "The Constant Symbol," By the Author. New York: Modern Library, 1946.

Citação norma MLA

Frost, Robert. The Poems of Robert Frost: With an Introductory Essay, "The Constant Symbol," By the Author. New York: Modern Library, 1946.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.