(1957). Relaxation and Exercise for Natural Childbirth.
Citação norma ChicagoRelaxation and Exercise for Natural Childbirth. 1957.
MLA引文Relaxation and Exercise for Natural Childbirth. 1957.
警告：這些引文格式不一定是100％准確.
APA引文
(1957). Relaxation and Exercise for Natural Childbirth.
Citação norma ChicagoRelaxation and Exercise for Natural Childbirth. 1957.
MLA引文Relaxation and Exercise for Natural Childbirth. 1957.