Matèries Matèries Pynciau Themen Themen ?????? Subjects Materias Gaiak Sujets Materias Témák Témák Subjek Viðfangsefni Viðfangsefni soggetti ?? ?????????? ?? Onderwerpen Assuntos Assuntos Assuntos ???? osebe ??????? Ämnesområden ?????? Ch? ?? ?? Painting, American--20th century Painting, Modern--20th century--United States https://lccn.loc.gov/sh85096806