Biblio

D. D. Mara, Ayres, R., Lee, D., and Stott, R., An experimental evaluation of potential risks to human health from parasitic nematodes in wastewaters treated in waste stabilization ponds and used for crop irrigation, vol. no. 6. Leeds, UK: University of Leeds, Department of Civil Engineering, 1994, p. xii, 73 p. : fig., tab.

D. D. Mara, Ayres, R., and Lee, D., “The enumeration of human intestinal nematode eggs in raw and treated wastewaters”. University of Leeds, Department of Civil Engineering, Leeds, UK, p. vii, 75 p.: fig., tab., 1989.