American Society for Psychoprophylaxis in Obstetrics. (1992). The Journal of perinatal education: An ASPO/Lamaze publication. American Society for Psychoprophylaxis in Obstetrics.
芝加哥风格引文American Society for Psychoprophylaxis in Obstetrics. The Journal of Perinatal Education: An ASPO/Lamaze Publication. Washington, DC: American Society for Psychoprophylaxis in Obstetrics, 1992.
MLA引文American Society for Psychoprophylaxis in Obstetrics. The Journal of Perinatal Education: An ASPO/Lamaze Publication. American Society for Psychoprophylaxis in Obstetrics, 1992.
警告：这些引文格式不一定是100％准确.