Introduction to combinatorics
Wallis, Walter D. and George, John C.
Introduction to combinatorics Wallis, Walter D. and George, John C. - 2nd ed. - CRC Press 2017
/ T17 WAL.G
Introduction to combinatorics Wallis, Walter D. and George, John C. - 2nd ed. - CRC Press 2017
/ T17 WAL.G