Pipelines and permafrostde Peter J. WilliamsMateriasArctic regionsFrozen groundNatural gasPetroleumPipe linesPipelinesPetroleum pipelinesNatural gas pipelinesPermafrostEdiciones (1)Pipelines and permafrost (1979)LongmanMás obras de Peter J. WilliamsPProperties and behaviour of freezing soilsProperties and behaviour of freezing soils1967The surface of the earthFreezing and thawing of soil-water systems