Ballou, M. M. (1890). Due North, or, Glimpses of Scandinavia and Russia. Boston: Houghton Mifflin.
シカゴスタイル引用形Ballou, Maturin Murray. Due North, Or, Glimpses of Scandinavia and Russia. Boston: Houghton Mifflin, 1890.
MLA引用形式Ballou, Maturin Murray. Due North, Or, Glimpses of Scandinavia and Russia. Boston: Houghton Mifflin, 1890.
警告: この引用は必ずしも正確ではありません.