Lua APA (7ú heag.)
Bjelopera, J. P. (2005). City of clerks: Office and sales workers in Philadelphia, 1870-1920. University of Illinois Press.
Lua i Stíl Chicago (17ú heag.)
Bjelopera, Jerome P. City of Clerks: Office and Sales Workers in Philadelphia, 1870-1920. Urbana: University of Illinois Press, 2005.
Lua MLA (9ú heag.)
Bjelopera, Jerome P. City of Clerks: Office and Sales Workers in Philadelphia, 1870-1920. University of Illinois Press, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.