Revelle, R. (1974). Possibilities for agricultural development in Lake Chad. s.n.].
Chicagoスタイル(17版)引用形式Revelle, Roger. Possibilities for Agricultural Development in Lake Chad. [s.l.: s.n.], 1974.
MLA(8版)引用形式Revelle, Roger. Possibilities for Agricultural Development in Lake Chad. s.n.], 1974.
警告: この引用は必ずしも正確ではありません.