Philadelphia Museum of Art, United States. Work Projects Administration (Pa.), & Dibert, L. (1939). Early folk arts of Pennsylvania / Philadelphia Museum of Art, Division of Education, in collaboration with the Pennsylvania Art Project of the Work Projects Administration. Philadelphia Museum of Art.
Cytowanie według stylu Chicago (wyd. 17)Philadelphia Museum of Art, United States. Work Projects Administration (Pa.), i Louis Dibert. Early Folk Arts of Pennsylvania / Philadelphia Museum of Art, Division of Education, in Collaboration with the Pennsylvania Art Project of the Work Projects Administration. [Philadelphia]: Philadelphia Museum of Art, 1939.
Cytowanie według stylu MLA (wyd. 8)Philadelphia Museum of Art, et al. Early Folk Arts of Pennsylvania / Philadelphia Museum of Art, Division of Education, in Collaboration with the Pennsylvania Art Project of the Work Projects Administration. Philadelphia Museum of Art, 1939.