TY - BOOK ED - National Materials Conservation Symposium, Gaithersburg, Md., 1974. ED - Alter, Harvey ED - Horowitz, Emanuel ED - United States. National Bureau of Standards TI - Resource recovery and utilization; proceedings of the National Materials Conservation Symposium : a symposium sponsored by National Bureau of Standards... held at the National Bureau of Standards, Gaithersburg, Md., 29 April-1 May 1974 Resource recovery and utilization; proceedings of the National Materials Conservation Symposium: a symposium sponsored by National Bureau of Standards...et al. held at the National Bureau of Standards, Gaithersburg, Md., 29 April-1 May 1974 PY - 1975/// CY - Philadelphia PB - American Society for Testing and Materials KW - Recycling (Waste, etc.) KW - Congresses N1 - Includes bibliographical references and index ER -