Introduction to combinatorics /
Berman, Gerald.
Introduction to combinatorics / Gerald Berman and K.D. Fryer. - New York : Academic Press, 1972. - xiii, 300 p. :
0120927500
Combinatorial analysis.--
511.6 / In
Introduction to combinatorics / Gerald Berman and K.D. Fryer. - New York : Academic Press, 1972. - xiii, 300 p. :
0120927500
Combinatorial analysis.--
511.6 / In