Holmström, I., & Sandström, C. (1972). Maintenance of old buildings: Preservation from the technical and antiquarian standpoint. National Swedish Institute for Building Research.
Cita Chicago (17th ed.)Holmström, Ingmar, i Christina Sandström. Maintenance of Old Buildings: Preservation from the Technical and Antiquarian Standpoint. Stockholm: National Swedish Institute for Building Research, 1972.
Cita MLA (8th ed.)Holmström, Ingmar, i Christina Sandström. Maintenance of Old Buildings: Preservation from the Technical and Antiquarian Standpoint. National Swedish Institute for Building Research, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.