Helston, M. (1989). Painting in Spain: During the later eighteenth century. National Gallery Publ..
Chicago-Zitierstil (17. Ausg.)Helston, Michael. Painting in Spain: During the Later Eighteenth Century. London: National Gallery Publ., 1989.
MLA-Zitierstil (8. Ausg.)Helston, Michael. Painting in Spain: During the Later Eighteenth Century. National Gallery Publ., 1989.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.