Cita APA (7th ed.)

John G. Johnson Collection (Philadelphia, Pa.). (1941). John G. Johnson collection: Catalogue of paintings. [s.n.].

Cita Chicago (17th ed.)

John G. Johnson Collection (Philadelphia, Pa.). John G. Johnson Collection: Catalogue of Paintings. Philadelphia: [s.n.], 1941.

Cita MLA (8th ed.)

John G. Johnson Collection (Philadelphia, Pa.). John G. Johnson Collection: Catalogue of Paintings. [s.n.], 1941.