Lua APA (7ú heag.)
ebrary, Inc, Whyte, I. B., & Frisby, D. Metropolis Berlin: 1880-1940.
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, Iain Boyd Whyte, agus David Frisby. Metropolis Berlin: 1880-1940.
Lua MLA (9ú heag.)
ebrary, Inc, et al. Metropolis Berlin: 1880-1940.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.