Columbus (1991, p. 87). Or "these people are very simple as regards the use of arms … for with fifty men they can all be subjugated and made to do what is required of them." (Columbus & Toscanelli, 2010, p. 41) نسخة محفوظة 2021-11-10 على موقع واي باك مشين.
Helle، Richard. "Slavery". Encyclopedia Britannica. مؤرشف من الأصل في 2021-11-22. اطلع عليه بتاريخ 2021-08-16.
Columbus (1991, p. 87). Or "these people are very simple as regards the use of arms … for with fifty men they can all be subjugated and made to do what is required of them." (Columbus & Toscanelli, 2010, p. 41) نسخة محفوظة 2021-11-10 على موقع واي باك مشين.