Cita APA (7a ed.)

Estados Unidos. Department of State. (1949). Energy resources of the world. Department of State.

Cita Chicago Style (17a ed.)

Estados Unidos. Department of State. Energy Resources of the World. Washington: Department of State, 1949.

Cita MLA (9a ed.)

Estados Unidos. Department of State. Energy Resources of the World. Department of State, 1949.