Não informado. (1980). European Journal of Combinatorics. Academic Press.
Chicagoスタイル(17版)引用形式Não informado. European Journal of Combinatorics. London: Academic Press, 1980.
MLA(8版)引用形式Não informado. European Journal of Combinatorics. Academic Press, 1980.
警告: この引用は必ずしも正確ではありません.