B. N. Singh, Maitra, S., and Sharma, R.,
“Problems and issues in urban environmental management : experiences of ten best practices”. Human Settlement Management Institute, New Delhi, India, p. vi, 54 p.: 1 map, 1996.
B. N. Singh, Maitra, S., and Sharma, R.,
“Urban environmental management : the Indian experience”. Human Settlement Management Institute, New Delhi, India, p. xvi, 336 p. fig., maps, photogr., tab., 1996.