DAVIS E. H. . POULAS, . (1980). PILE FOUNDATION ANALYSIS AND DESIGN. NULL: JOHN WILEE AND SONS.
DAVIS E. H. . POULAS, . 1980. PILE FOUNDATION ANALYSIS AND DESIGN. NULL: JOHN WILEE AND SONS.
DAVIS E. H. . POULAS, . PILE FOUNDATION ANALYSIS AND DESIGN. NULL: JOHN WILEE AND SONS. 1980.