APA引文

Heardman, H., & Ebner, M. (1982). Relaxation and exercise for natural childbirth (5th ed.). Churchill Livingstone.

Chicago Style (17th ed.) Citation

Heardman, Helen, and Maria Ebner. Relaxation and Exercise for Natural Childbirth. 5th ed. Edinburgh: Churchill Livingstone, 1982.

MLA引文

Heardman, Helen, and Maria Ebner. Relaxation and Exercise for Natural Childbirth. 5th ed. Churchill Livingstone, 1982.