APA-viite (7. p.)

Roehr, D., & Lokman, K. (2015). Step Into The Abyss: The recently opened Glacier Skywalk in Jasper National Park, Alberta. Topos.

Chicago-viite (17. p.)

Roehr, Daniel, ja Kees Lokman. "Step Into The Abyss: The Recently Opened Glacier Skywalk in Jasper National Park, Alberta." Topos 2015.

MLA-viite (8. p.)

Roehr, Daniel, ja Kees Lokman. "Step Into The Abyss: The Recently Opened Glacier Skywalk in Jasper National Park, Alberta." Topos, 2015.