1. Conversion of piggery waste to microbial protein;Boardman;Ph.D. Thesis UMIST,1980
2. Design study of a piggery waste recycle unit;Guilanya;M.Sc. Dissertation, UMIST,1977
3. Specific composition of representative feedlot wastes;Hrubant,1978
4. The production of animal feedstuffs by the submerged culture of fungi on agricultural wastes;Morris,1973
5. Characterization of waste treatment properties of pig manure;O'Callaghan;Journal of Agricultural Engineering Research,1971