Frith, l. (1996). Ethics and midwifery issues in contemporary. Butterworth-heinemann.
Citazione stile Chigago Style (17a edizione)Frith, lucy. Ethics and Midwifery Issues in Contemporary. Butterworth-heinemann, 1996.
Citatione MLA (9a ed.)Frith, lucy. Ethics and Midwifery Issues in Contemporary. Butterworth-heinemann, 1996.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.