APA-ийн эшлэл(7 дахь хэвлэлт)

Bjelopera, J. P. (2005). City of clerks: Office and sales workers in Philadelphia, 1870-1920. University of Illinois Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Bjelopera, Jerome P. City of Clerks: Office and Sales Workers in Philadelphia, 1870-1920. Urbana: University of Illinois Press, 2005.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Bjelopera, Jerome P. City of Clerks: Office and Sales Workers in Philadelphia, 1870-1920. University of Illinois Press, 2005.