Mathematical models / by H. Martyn Cundy and A. P. Rollett. Cundy, H. Martyn (Henry Martyn) Rollett, A. P., joint author. Mathematics Study and teaching Audio-visual aids. QA11 .C8 1961 510.84 CUM Includes bibliographical references and index. Oxford : Clarendon Press, 1951. 1951. 1961 Text 286 p. : eng