D. D. Mara, da Costa, S. M. Vaz, and Bastos, R. K. X.,
Bacteriological aspects of wastewater irrigation, vol. no. 8. Leeds, UK: University of Leeds, Department of Civil Engineering, 1996, p. xiii, 118 p. : fig., tab.
D. D. Mara and Oragui, J. I.,
Enumeration of rotaviruses in tropical wastewaters, vol. no. 10. Leeds, UK: University of Leeds, Department of Civil Engineering, 1996, p. ix, 55 p. : tab.
D. D. Mara, Stentiford, E. I., and Neto, J. T. Pereira,
Low cost composting, vol. no. 4. Leeds, UK: University of Leeds, Department of Civil Engineering, 1996, p. ix, 50 p. : fig., tab.
D. D. Mara,
Low-cost sewerage. Chichester, UK: Wiley, 1996, p. xii, 225 p. : fig., tab.
D. D. Mara,
Low-cost urban sanitation. Chichester, UK: Wiley, 1996, p. xv, 223 p. : fig., tab.
D. D. Mara, Silva, S. A., and de Oliveira, R.,
Performance of waste stabilization ponds in Northeast Brazil, vol. no. 9. Leeds, UK: University of Leeds, Department of Civil Engineering, 1996, p. ix, 139 p. : fig., tab.
D. D. Mara, Pearson, H. W., Silva, S. A., de Oliveira, R., Oragui, J. I., and Cawley, L. R.,
Wastewater storage and treatment reservoirs in Northeast Brazil, vol. no. 12. Leeds, UK: University of Leeds, Department of Civil Engineering, 1996, p. viii, 34 p. : 7 fig., 21 tab.