Al Maaref. (1950). The Royal Geographical Society of Egypt: 1875-1950 : history and activities. Cairo: Al Maaref.
シカゴスタイル引用形Al Maaref. The Royal Geographical Society of Egypt: 1875-1950 : History and Activities. Cairo: Al Maaref, 1950.
MLA引用形式Al Maaref. The Royal Geographical Society of Egypt: 1875-1950 : History and Activities. Cairo: Al Maaref, 1950.
警告: この引用は必ずしも正確ではありません.