G. Higgin
- (1879): Experiments on the Filtration of Water, with some Remarks on the Composition of the Water of the River Plate. Dans: Minutes of the Proceedings of the Institution of Civil Engineers, v. 57, n. 1879-3 ( 1879).
- (1868): Irrigation in Spain: Chiefly in Reference to the Construction of the Henares and the Esla Canals in That Country. Dans: Minutes of the Proceedings of the Institution of Civil Engineers, v. 27, n. 1868 ( 1868).
- (1884): The Old Water-Supply of Seville. Dans: Minutes of the Proceedings of the Institution of Civil Engineers, v. 78, n. 1884-4 ( 1884).
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