Lua APA (7ú heag.)
Lumholtz, C. (1987). Unknown Mexico: Explorations in the Sierra Madre and other regions 1890-1898. Dover Publications.
Lua i Stíl Chicago (17ú heag.)
Lumholtz, Carl. Unknown Mexico: Explorations in the Sierra Madre and Other Regions 1890-1898. New York: Dover Publications, 1987.
Lua MLA (9ú heag.)
Lumholtz, Carl. Unknown Mexico: Explorations in the Sierra Madre and Other Regions 1890-1898. Dover Publications, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.