University of Engineering and Technology. Institute of Public Health Engineering and Research. (1982). Survey of handpumps in the Punjab Province. Institute of Public Health Engineering and Research, University of Engineering and Technology.
Παραπομπή σε μορφή Chicago (17η εκδ.)University of Engineering and Technology. Institute of Public Health Engineering and Research. Survey of Handpumps in the Punjab Province. Lahore: Institute of Public Health Engineering and Research, University of Engineering and Technology, 1982.
Παραπομπή σε μορφή MLA (8th εκδ.)University of Engineering and Technology. Institute of Public Health Engineering and Research. Survey of Handpumps in the Punjab Province. Institute of Public Health Engineering and Research, University of Engineering and Technology, 1982.