Public policy toward environment 1973: a review and appraisal. Minerals and metals.
D000497:Alloys; D004463:Ecology; D004777:Environment; D004787:Environmental Pollution / Q000517:prevention & control; D007220:Industrial Waste; D008669:Metallurgy; D008670:Metals; D008903:Minerals; D009791:Oceanography; D012939:Social Planning; D013455:Sulfur; D014481:United States
D000497:Alloys; D007220:Industrial Waste; D008670:Metals; D008903:Minerals; D013455:Sulfur