Não informado. (1912). Instructions for collectors. British Museum.
Chicagoスタイル(17版)引用形式Não informado. Instructions for Collectors. London: British Museum, 1912.
MLA(8版)引用形式Não informado. Instructions for Collectors. British Museum, 1912.
警告: この引用は必ずしも正確ではありません.