Johnson, r. (2001). Skills for midwifery practice. Churchill Livingstone.
Cita Chicago (17th ed.)Johnson, ruth. Skills for Midwifery Practice. Churchill Livingstone, 2001.
Cita MLA (9th ed.)Johnson, ruth. Skills for Midwifery Practice. Churchill Livingstone, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.