Cita APA (7a ed.)

Warren, R. P. (1971). John Greenleaf Whittier's Poetry: An Appraisal and a Selection. University of Minnesota Press.

Cita Chicago Style (17a ed.)

Warren, Robert Penn. John Greenleaf Whittier's Poetry: An Appraisal and a Selection. Minneapolis: University of Minnesota Press, 1971.

Cita MLA (8a ed.)

Warren, Robert Penn. John Greenleaf Whittier's Poetry: An Appraisal and a Selection. University of Minnesota Press, 1971.