Humphries, J. (1991). 'Bread and a pennyworth of treacle': Excess female mortality in England in the 1840s. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Humphries, J. 'Bread and a Pennyworth of Treacle': Excess Female Mortality in England in the 1840s. Oxford University Press, 1991.
Lua MLA (9ú heag.)Humphries, J. 'Bread and a Pennyworth of Treacle': Excess Female Mortality in England in the 1840s. Oxford University Press, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.