Dorsey, J. H. (2011). Hirelings: African American workers and free labor in early Maryland. Cornell University Press.
Lua i Stíl Chicago (17ú heag.)Dorsey, Jennifer Hull. Hirelings: African American Workers and Free Labor in Early Maryland. Ithaca: Cornell University Press, 2011.
Lua MLA (9ú heag.)Dorsey, Jennifer Hull. Hirelings: African American Workers and Free Labor in Early Maryland. Cornell University Press, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.