1. Recent trends and developments in the avoidance of farm waste pollution;Nielsen,1981
2. Energy data for manure handling equipment;Safley;Trans. ASAE,1982
3. Muck on the mind;Chancellor;Dairy Farmer,1983
4. Physical properties of animal manures associated with handling;Sobel,1966
5. Rheology of livestock waste slurries;Hashimoto;Trans. ASAE,1976