Campbell, H. (1970). Prisoners of poverty: Women wage-workers, their trades and their lives. Greenwood Press.
Lua i Stíl Chicago (17ú heag.)Campbell, Helen. Prisoners of Poverty: Women Wage-workers, Their Trades and Their Lives. Westport, Conn.: Greenwood Press, 1970.
Lua MLA (8ú heag.)Campbell, Helen. Prisoners of Poverty: Women Wage-workers, Their Trades and Their Lives. Greenwood Press, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.