Não informado. (1971). Journal of Combinatorial Theory. Academic Press.
Chicagoスタイル(17版)引用形式Não informado. Journal of Combinatorial Theory. Duluth, Minn: Academic Press, 1971.
MLA(8版)引用形式Não informado. Journal of Combinatorial Theory. Academic Press, 1971.
警告: この引用は必ずしも正確ではありません.