Não informado. (1952). Arboretum Newsletter. Wisconsin University.
Chicagoスタイル(17版)引用形式Não informado. Arboretum Newsletter. Madison, Wis: Wisconsin University, 1952.
MLA(8版)引用形式Não informado. Arboretum Newsletter. Wisconsin University, 1952.
警告: この引用は必ずしも正確ではありません.