Robert Frost. (1975). The poetry of Robert Frost: The collected poems, complete and unabridged. New York: Henry Holt and Co.
Chicago-tyylinen lähdeviittausRobert Frost. The Poetry of Robert Frost: The Collected Poems, Complete and Unabridged. New York: Henry Holt and Co, 1975.
MLA-viiteRobert Frost. The Poetry of Robert Frost: The Collected Poems, Complete and Unabridged. New York: Henry Holt and Co, 1975.
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