C.C.Inglis C.I.E2024-05-242024-05-241940PID-IRI-0000013581https://digitallibrary.punjab.gov.pk//handle/123456789/12945950 PagesenNote on the Theory, Design and Construction of Gibb Modules, which without Moving Parts Give a Constant Discharge within Working Limits Irrespective of Variations in Upstream and Downstream Water LevelsBook