Combination in Lexicographical Order (Algorithm 154) CACM March, 1963 Mifsud, C. J. CA630313 JB March 14, 1978 1:34 PM 907 5 907 907 5 907 907 5 907 3115 5 907 907 6 907 2045 6 907 2417 6 907 2466 6 907 2884 6 907 579 6 907 785 6 907