Special publications. 361. Performance concept in buildings: v. 2, Opening addresses, rapporteur reviews, and discussions, proceedings of symposium, jointly sponsored by International Union of Testing and Research Laboratories for Material and Structures (RILEM), American Society for Testing and Materials (ASTM) and International Council for Building Research Studies and Documentation (CIB), held at Philadelphia, Pa., May 2-5, 1972 [with list of references]; edited by Bruce E. Foster.