2022-01-22 リンク·メモ INTERNATIONAL LAW A TREATISE VOL. I. PEACE SECOND EDITION BY L. OPPENHEIM M.A., LL.D. 1912 INTERNATIONAL LAW A TREATISE VOL. I. PEACE SECOND EDITION BY L. OPPENHEIM M.A., LL.D. https://www.gutenberg.org/files/41046/41046-h/41046-h.htm