1. A season to be born;Arms,1973
2. Position paper: ASPO/Lamaze philosophy of birth;ASPO/Lamaze.,1988
3. A comprehensive perinatal education program;Biasella;AWHONN’s Clinical Issues in Perinatal and Women’s Health Nursing,1993
4. Birth as an American rite of passage.Berkeley;Davis-Floyd,1992
5. Natural childbirth;Dick-Read,1933