APA-viite (7. p.)

Young, D., & Block, I. (2000). Saving America's treasures. National Geographic Society.

Chicago-viite (17. p.)

Young, Dwight, ja Ira Block. Saving America's Treasures. Washington, D.C: National Geographic Society, 2000.

MLA-viite (9. p.)

Young, Dwight, ja Ira Block. Saving America's Treasures. National Geographic Society, 2000.