Cita APA (7a ed.)

Santayana, G. (1906). Sonnets and other verses. Duffield.

Cita Chicago Style (17a ed.)

Santayana, George. Sonnets and Other Verses. New York: Duffield, 1906.

Cita MLA (9a ed.)

Santayana, George. Sonnets and Other Verses. Duffield, 1906.