Citazione Stile APA (7a Edizione)

Poirier, R. (1977). Robert Frost: The work of knowing. Oxford University Press.

Citazione stile Chigago Style (17a edizione)

Poirier, Richard. Robert Frost: The Work of Knowing. New York: Oxford University Press, 1977.

Citatione MLA (8a ed.)

Poirier, Richard. Robert Frost: The Work of Knowing. Oxford University Press, 1977.