(1989). Indirect methods for estimating the hydraulic properties of unsaturated soils: Proceedings of the international workshop on indirect methods for estimating the hydraulic properties of Unsaturated soils. Califonia: U.S. Department of Agriculture.
Chicago-tyylinen lähdeviittausIndirect Methods for Estimating the Hydraulic Properties of Unsaturated Soils: Proceedings of the International Workshop On Indirect Methods for Estimating the Hydraulic Properties of Unsaturated Soils. Califonia: U.S. Department of Agriculture, 1989.
MLA-viiteIndirect Methods for Estimating the Hydraulic Properties of Unsaturated Soils: Proceedings of the International Workshop On Indirect Methods for Estimating the Hydraulic Properties of Unsaturated Soils. Califonia: U.S. Department of Agriculture, 1989.