एपीए उद्धरण

George Santayana (1863-1952). (1986). Persons and places (Fragnments of autobiography): Vol.1 - The works of George Santayana. Cambridge, Massachusettes: MIT.

शिकागो स्टाइल उद्धरण

George Santayana (1863-1952). Persons and Places (Fragnments of Autobiography): Vol.1 - The Works of George Santayana. Cambridge, Massachusettes: MIT, 1986.

एमएलए उद्धरण

George Santayana (1863-1952). Persons and Places (Fragnments of Autobiography): Vol.1 - The Works of George Santayana. Cambridge, Massachusettes: MIT, 1986.