Scott's Last Expedition Vol I pp. 543–46, pp. 580–95 Preston, pp. 184–205 "Explorer and leader: Captain Scott".
اطلع عليه بتاريخ 25 سبتمبر 2008.  Scott's Last Expedition Vol I pp. 543–46, pp. 580–95 Preston, pp. 184–205 "Explorer and leader: Captain Scott".