Garbett 1895, p. 90. Garbett, H., ed. (1895). "Naval and Military Notes – Italy". Journal of the Royal United Service Institution. XXXIX. London: J. J. Keliher: 81–111. OCLC8007941.
The Italians in Africa, p. 23. "The Italians in Africa". The African Review. VII. London: The African Review Publishing Company. OCLC39120879.
Garbett 1899, p. 792. Garbett, H., ed. (1899). "Naval Notes – Italy". Journal of the Royal United Service Institution. XLIII. London: J. J. Keliher: 792–796. OCLC8007941.
Garbett 1903, p. 1069. Garbett, H., ed. (1903). "Naval Notes". Journal of the Royal United Service Institution. XLVII (307). London: J. J. Keliher & Co.: 1058–1075. OCLC8007941.
Garbett 1907, p. 93. Garbett, H., ed. (1907). "Naval Notes – Italy". Journal of the Royal United Service Institution. LI. London: J. J. Keliher: 92–94. OCLC8007941.
Geikie & Newbigin, p. 432. Geikie, James & Newbigin, Marion I., eds. (1908). "Meteorological Investigation in Africa". The Scottish Geographical Magazine. XXIV. Edinburgh: T. and A. Constable: 432. OCLC1604208.