Levinson, N. (1940). Gap and density theorems. American Mathematical Society.
Chicagoスタイル(17版)引用形式Levinson, Norman. Gap and Density Theorems. New York: American Mathematical Society, 1940.
MLA(9版)引用形式Levinson, Norman. Gap and Density Theorems. American Mathematical Society, 1940.
警告: この引用は必ずしも正確ではありません.