Application of sewage sludge to cropland :
appraisal of potential hazards of the heavy metals to plants and animals /
by Agricultural (sic) Science and Technology.

APA Citation

Council for Agricultural Science and Technology., United States. Environmental Protection Agency. Office of Water Program Operations. (1976). Application of sewage sludge to cropland: appraisal of potential hazards of the heavy metals to plants and animals. Washington: Environmental Protection Agency, Office of Water Program Operations .

MLA Citation

Council for Agricultural Science and Technology, and United States. Environmental Protection Agency. Office of Water Program Operations. Application of Sewage Sludge to Cropland: Appraisal of Potential Hazards of the Heavy Metals to Plants And Animals. Washington: Environmental Protection Agency, Office of Water Program Operations , 1976.