Hoagland, E. (1978). African Calliope: A journey to the Sudan. Random House.
Chicagoスタイル(17版)引用形式Hoagland, Edward. African Calliope: A Journey to the Sudan. New York: Random House, 1978.
MLA(9版)引用形式Hoagland, Edward. African Calliope: A Journey to the Sudan. Random House, 1978.
警告: この引用は必ずしも正確ではありません.