Cita APA (7th ed.)

Gallant, R. A. (1980). National Geographic picture atlas of our universe. National Geographic Society.

Cita Chicago (17th ed.)

Gallant, Roy A. National Geographic Picture Atlas of Our Universe. Washington, D.C.: National Geographic Society, 1980.

Cita MLA (9th ed.)

Gallant, Roy A. National Geographic Picture Atlas of Our Universe. National Geographic Society, 1980.