Cita APA (7th ed.)
Georgetown University. A Pictoral Review: Georgetown, Past and Present. Georgetown University.
Cita Chicago (17th ed.)
Georgetown University. A Pictoral Review: Georgetown, Past and Present. Washington, EUA: Georgetown University.
Cita MLA (9th ed.)
Georgetown University. A Pictoral Review: Georgetown, Past and Present. Georgetown University.
Atenció: Aquestes cites poden no estar 100% correctes.