Cita APA (7th ed.)

Philadelphia Museum of Art. (1977). Gifts to mark a century: An exhibition celebrating the centennial of the Philadelphia Museum of Art, 18 February to 20 March, 1977, Philadelphia Museum of Art. The Museum.

Cita Chicago (17th ed.)

Philadelphia Museum of Art. Gifts to Mark a Century: An Exhibition Celebrating the Centennial of the Philadelphia Museum of Art, 18 February to 20 March, 1977, Philadelphia Museum of Art. Philadelphia: The Museum, 1977.

Cita MLA (8th ed.)

Philadelphia Museum of Art. Gifts to Mark a Century: An Exhibition Celebrating the Centennial of the Philadelphia Museum of Art, 18 February to 20 March, 1977, Philadelphia Museum of Art. The Museum, 1977.