Ladewig, P. A., London, M. L., & Olds, S. B. (1987). Maternal newborn nursing: A family-centered approach (3rd ed.). Addison-Wesley Publishing Company.

Ladewig, Partricia A., Marcia L. London, and Sally B. Olds. Maternal Newborn Nursing: A Family-centered Approach. 3rd ed. Menlo Park, California: Addison-Wesley Publishing Company, 1987.

Ladewig, Partricia A., et al. Maternal Newborn Nursing: A Family-centered Approach. 3rd ed. Addison-Wesley Publishing Company, 1987.