Johnson, r. (2001). Skills for midwifery practice. Churchill Livingstone.
Chicago Style (17. basım) AtıfJohnson, ruth. Skills for Midwifery Practice. Churchill Livingstone, 2001.
MLA (9th ed.) AtıfJohnson, ruth. Skills for Midwifery Practice. Churchill Livingstone, 2001.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..