Philadelphia Museum of Art. (1976). Philadelphia, three centuries of american art: Bicentennial exhibition, april 11-october 10, 1976. Philadelphia Museum of Art.
Cita Chicago Style (17a ed.)Philadelphia Museum of Art. Philadelphia, Three Centuries of American Art: Bicentennial Exhibition, April 11-october 10, 1976. Philadelphia: Philadelphia Museum of Art, 1976.
Cita MLA (9a ed.)Philadelphia Museum of Art. Philadelphia, Three Centuries of American Art: Bicentennial Exhibition, April 11-october 10, 1976. Philadelphia Museum of Art, 1976.
Precaución: Estas citas no son 100% exactas.