Lisborg, Niels. Principles of structural design / Niels Lisborg. - 2nd ed. - London : B. T. Batsford Ltd., c1967. - xv, 447 pages : illustrations ; 22 cm. Includes bibliographical references and index. Subjects--Topical Terms: Structural design. LC Class. No.: TA658 / .L5 1967 Dewey Class. No.: 624.177 LIS