Textbooks of obstetrics and midwifery (1910-1965)
	42. Jellett, H (1910) A Manual of Midwifery for Students and Practitioners.  New York: William Wood & Company MDCCCCX 43. Williams JW (1917) Obstetrics: A Text-Book for the Use of Students and Practitioners, Fourth Edition. 44. von Reuss, AR (1921) The Diseases of the Newborn.  New York William Wood & Co, MCMXXI (Vienna, January 1914) 45. DeLee JB (1930) The Principles and Practice of Obstetrics.  Philadelphia and London: WB Saunders Company. 46. Curtis AH, ed (1933) Obstetrics and Gynecology (3 vols).  Philadelphia & London: WB Saunders Company. 47. Fitzgibbon, G (1937) Obstetrics. Browne and Nolan Limited, Dublin/Belfast/Cork/Waterford, 1937. 48. Johnstone RW  (1949) A Text-Book of Midwifery, for Students and Practitioners, Fourteenth Edition. London: Adam and Charles Black. 49. Greenhill JP (1951) Principles and Practice of Obstetrics; originally by Joseph B. DeLee, M.D., Tenth Edition.  W.B. Saunders Company, Philadelphia and London. 50. Greenhill, JP (1955) Obstetrics Eleventh Edition WB Saunders Company, Philadelphia and London.   51. Greenhill JP (1965) Obstetrics: From the original text of Joseph B. DeLee, MD. Thirteenth Edition. W.B. Saunders Company, Philadelphia & London.
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