Cita APA (7a ed.)

Singer, I. (2000). George Santayana, literary philosopher. Yale University Press.

Cita Chicago Style (17a ed.)

Singer, Irving. George Santayana, Literary Philosopher. New Haven [Conn.]: Yale University Press, 2000.

Cita MLA (9a ed.)

Singer, Irving. George Santayana, Literary Philosopher. Yale University Press, 2000.