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শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিWEDC Conference (5th : (1979 : Loughborough University of Technology), Loughborough University of Technology, John Pickford, এবং Meryl Murphy. Collaboration in Water and Waste Engineering for Developing Countries: 5th WEDC Conference, 22-24 April 1979. Loughborough: WEDC Group, Department of Civil Engineering, University of Technology, Loughborough, 1979.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিWEDC Conference (5th : (1979 : Loughborough University of Technology), et al. Collaboration in Water and Waste Engineering for Developing Countries: 5th WEDC Conference, 22-24 April 1979. WEDC Group, Department of Civil Engineering, University of Technology, Loughborough, 1979.