World Health Organization. Expert Committee on the Unification of Pharmacopoeias

• Report on the fifth session, Geneva, 26 September-5 October 1949
• Report on the fourth session, Geneva, 20-30 April 1949
• Report on the seventh session, Geneva, 30 October - 4 November 1950
• Report on the sixth session, New York City, N.Y., 20-29 April 1950