TY - BOOK TI - Application of the relaxtion method in the study of drainage at a free surface in a porous medium U1 - 631.6 APP 1957 PY - 1957/// CY - Karachi PB - PANSDOC KW - Application of the relaxtion method in the study of drainage at a fre surface in a porous medium N1 - Application of the relaxtion method in the study of drainage at a fre surface in a porous medium ER -