Wilson, A. (1961). The old men at the zoo. Seeker & Warburg.
Chicagoスタイル(17版)引用形式Wilson, Angus. The Old Men at the Zoo. London: Seeker & Warburg, 1961.
MLA(9版)引用形式Wilson, Angus. The Old Men at the Zoo. Seeker & Warburg, 1961.
警告: この引用は必ずしも正確ではありません.