APA-referens

Burger, R. L., & Salazar, L. C. (2004). Machu Picchu: Unveiling the mystery of the Incas. Yale University press.

Chicago-stil citat

Burger, Richard L., och Lucy C. Salazar. Machu Picchu: Unveiling the Mystery of the Incas. New Haven: Yale University press, 2004.

MLA-referens

Burger, Richard L., och Lucy C. Salazar. Machu Picchu: Unveiling the Mystery of the Incas. Yale University press, 2004.