1. Lying-In: A History of Childbirth in America;Wertz,1989
2. The organisation and administration of perinatal services in The Netherlands;Phaff,1986
3. Baren: Verticale Baring, Eerste Contact, Infloed van Water, Complicaties;van Rees,1984
4. [English translation of introduction, articles and interviews (but not photographs) available as: Giving Birth: Home Birth, Vertical Positions, First Contact, Influence of Water, Dealing with Complictions. Body Language Foundations, N. K. Leveroy, n.d.]
5. Childbirth and society;Kitzinger,1989