Howard, G. (1992). Wheelbarrow across the Sahara. Grafton.
Chicagoスタイル(17版)引用形式Howard, Geoffrey. Wheelbarrow Across the Sahara. London: Grafton, 1992.
MLA(9版)引用形式Howard, Geoffrey. Wheelbarrow Across the Sahara. Grafton, 1992.
警告: この引用は必ずしも正確ではありません.