National Gallery of Art Washington, D.C. : : Summary Catalogue of European Paintings and Sculpture.

MLA

Walker, John. National Gallery of Art Washington, D.c. : Summary Catalogue of European Paintings and Sculpture. Washington: National Gallery of Art (Washington), 1965.

APA

Walker, J. (1965). National Gallery of Art Washington, D.C. : Summary Catalogue of European Paintings and Sculpture. Washington: National Gallery of Art (Washington).

Chicago

Walker, John National Gallery of Art Washington, D.C.: Summary Catalogue of European Paintings and Sculpture. Washington: National Gallery of Art (Washington), 1965.