Almansi, Guido, and Bruce Merry, Eugenio Montale: The Private Language of Poetry, Edinburgh University Press, 1977, pp. 6—7.

Brook, J. Clodagh, The Expression of the Inexpressible in Eugenio Montale's Poetry: Metaphor, Negation, and Silence, Oxford University Press, 2002, p. 99.

Cambon, Glauco, "Eugene Montale: An Introduction," in Eugenio Montale: Selected Poems, New Directions, 1966, p. xiii.

Cary, Joseph, Three Modern Italian Poets: Saba, Ungaretti, Montale, New York University Press, 1969, pp. 235—329.

Galassi, Jonathan, ed., "Notes," in Collected Poems: 1920—1954, by Eugenio Montale, Farrar, Straus and Giroux, 1999, p. 443.

Montale, Eugenio, Poet in Our Time, translated by Alastair Hamilton, Marion Boyars, 1976, p. 22.

Singh, G., Eugenio Montale: A Critical Study of His Poetry, Prose, and Criticism, Yale University Press, 1973, pp. 19—20.

Talbot, George, ed., "Notes," in Selected Poems, by Eugenio Montale, UCD Foundation for Italian Studies, 2000, p. 40.

West, Rebecca J., "Eugenio Montale," in Dictionary of Literary Biography, Vol. 114, Twentieth-Century Italian Poets, First Series, edited by...