Cita APA (7a ed.)

Hammerly Dupuy, D. (1947). El mundo del futuro. Pacific Press Publishing Association.

Cita Chicago Style (17a ed.)

Hammerly Dupuy, Daniel. El Mundo Del Futuro. Mountain View (California) [etc.]: Pacific Press Publishing Association, 1947.

Cita MLA (9a ed.)

Hammerly Dupuy, Daniel. El Mundo Del Futuro. Pacific Press Publishing Association, 1947.