An American sampler :
folk art from the Shelburne Museum.
APA Citation
National Gallery of Art (U.S.)., Shelburne Museum. (1987). An American sampler: folk art from the Shelburne Museum. Washington: National Gallery of Art.
MLA Citation
National Gallery of Art (U.S.), and Shelburne Museum. An American Sampler: Folk Art From the Shelburne Museum. Washington: National Gallery of Art, 1987.
Warning: These citations may not always be complete (especially for serials).