Cowater International -Ottawa, Ont., CA, Lahore, P. K. N. E. S. P. A. K. -, Islamabad, P. K. Developmen, y Wardrop-Acres -Winnipeg, Man, CA,
«Northern Areas : strategic provincial investment plan and project preparation for rural water supply, sanitation and health : final strategic investment plan». Wardrop-Acres, Winnipeg, Man, Canada, p. 2 vol. (xxvi, 137 p. ; ca. 128 p.): fig., tab., 1989.