APA (7th ed.) Citation

Santayana, G. Philosophical opinion in America, by George Santayana ..

Chicago Style (17th ed.) Citation

Santayana, George. Philosophical Opinion in America, by George Santayana ..

MLA (9th ed.) Citation

Santayana, George. Philosophical Opinion in America, by George Santayana ..

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