Lawton,Thomas. (1993). Freer: A legacy of art. Smithsonian Institution.
Cita Chicago (17th ed.)Lawton,Thomas. Freer: A Legacy of Art. Washington DC: Smithsonian Institution, 1993.
Cita MLA (9th ed.)Lawton,Thomas. Freer: A Legacy of Art. Smithsonian Institution, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.