APA
National Childbirth Trust, . (1994). Healthy eating for pregnancy. London: National Childbirth Trust.
Chicago
National Childbirth Trust, . 1994. Healthy eating for pregnancy. London: National Childbirth Trust.
Harvard
National Childbirth Trust, . (1994). Healthy eating for pregnancy. London: National Childbirth Trust.
MLA
National Childbirth Trust, . Healthy eating for pregnancy. London: National Childbirth Trust. 1994.