(1976). Application of sewage sludge to cropland: Appraisal of potential hazards of the heavy metals to plants and animals. Office of Water Program Operations.
Chicago-Zitierstil (17. Ausg.)Application of Sewage Sludge to Cropland: Appraisal of Potential Hazards of the Heavy Metals to Plants and Animals. Washington, D.C: Office of Water Program Operations, 1976.
MLA-Zitierstil (9. Ausg.)Application of Sewage Sludge to Cropland: Appraisal of Potential Hazards of the Heavy Metals to Plants and Animals. Office of Water Program Operations, 1976.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.