APA-ийн эшлэл(7 дахь хэвлэлт)

Rubio, P. F. (2010). There's always work at the post office: African American postal workers and the fight for jobs, justice, and equality. University of North Carolina Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Rubio, Philip F. There's Always Work at the Post Office: African American Postal Workers and the Fight for Jobs, Justice, and Equality. Chapel Hill: University of North Carolina Press, 2010.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Rubio, Philip F. There's Always Work at the Post Office: African American Postal Workers and the Fight for Jobs, Justice, and Equality. University of North Carolina Press, 2010.