Lua APA (7ú heag.)
Gerhard, P. (1972). A guide to the historical geography of New Spain. University Press.
Lua i Stíl Chicago (17ú heag.)
Gerhard, Peter. A Guide to the Historical Geography of New Spain. Cambridge [Eng]: University Press, 1972.
Lua MLA (9ú heag.)
Gerhard, Peter. A Guide to the Historical Geography of New Spain. University Press, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.