Ryser, H. J. (1963). Combinatorial mathematics. Mathematical Association of America, distributed by Wiley.
Citación estilo ChicagoRyser, Herbert John. Combinatorial Mathematics. Buffalo: Mathematical Association of America, distributed by Wiley, 1963.
Cita MLARyser, Herbert John. Combinatorial Mathematics. Mathematical Association of America, distributed by Wiley, 1963.
Warning: These citations may not always be 100% accurate.