@book{25867,
	author = {Conference on Pore Pressure and Suction in Soils ( and Sociedad Internacional de Mecánica de los Suelos y de Trabajos de Cimientación.},
	title = {Pore pressure and suction in soils},
	publisher = {Butterworths,},
	year = {1961},
	address = {London :}
}