APA (7th ed.) Citation

Santayana, G. (2011). George Santayana's marginalia. George Santayana's marginalia a critical selection.

Chicago Style (17th ed.) Citation

Santayana, George. "George Santayana's Marginalia." George Santayana's Marginalia a Critical Selection 2011.

MLA (9th ed.) Citation

Santayana, George. "George Santayana's Marginalia." George Santayana's Marginalia a Critical Selection, 2011.

Warning: These citations may not always be 100% accurate.