Cita APA (7th ed.)

(1995). Above the Rockies: Through digital eyes ; Heart of the Rockies 1:2 847 000 = Heart of the Rockies. National Geographic Society.

Cita Chicago (17th ed.)

Above the Rockies: Through Digital Eyes ; Heart of the Rockies 1:2 847 000 = Heart of the Rockies. Washington: National Geographic Society, 1995.

Cita MLA (9th ed.)

Above the Rockies: Through Digital Eyes ; Heart of the Rockies 1:2 847 000 = Heart of the Rockies. National Geographic Society, 1995.