Combinatorial chance / by F.N. David and D.E. Barton. David, F. N. (Florence Nightingale), 1909-1993. Barton, D. E., joint author. Probabilities. Combinations. QA273 .D28 511.6 DAC Includes bibliographical references and index. London ; Charles Griffin, 1962. 1962. 1962 Text ix, 356 p. : eng