Cita APA (7a ed.)

Revelle, R. (1974). Possibilities for agricultural development in Lake Chad. s.n.].

Cita Chicago Style (17a ed.)

Revelle, Roger. Possibilities for Agricultural Development in Lake Chad. [s.l.: s.n.], 1974.

Cita MLA (8a ed.)

Revelle, Roger. Possibilities for Agricultural Development in Lake Chad. s.n.], 1974.