Johnson, r. (2001). Skills for midwifery practice. Churchill Livingstone.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रJohnson, ruth. Skills for Midwifery Practice. Churchill Livingstone, 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्रJohnson, ruth. Skills for Midwifery Practice. Churchill Livingstone, 2001.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.