Smiles, S. (1881). Duty, with illustrations of courage, patience, and endurance. Bedford, Clarke & co..
Chicagoスタイル(17版)引用形式Smiles, Samuel. Duty, with Illustrations of Courage, Patience, and Endurance. Chicago: Bedford, Clarke & co., 1881.
MLA(8版)引用形式Smiles, Samuel. Duty, with Illustrations of Courage, Patience, and Endurance. Bedford, Clarke & co., 1881.
警告: この引用は必ずしも正確ではありません.