Vilenkin, N. Y. (1971). Combinatorics. Academic Press.
Chicago-čujuhus (17. p.)Vilenkin, N. Y. Combinatorics. Nueva York: Academic Press, 1971.
MLA-čujuhus (9. p.)Vilenkin, N. Y. Combinatorics. Academic Press, 1971.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.