Grove S. K., Burns N. & Gray J. (2007). Understanding Nursing Research. Missouri: Elsevier Saunders.
Grove Susan K, Burns Nancy and Gray JR. 2007. Understanding Nursing Research. Missouri: Elsevier Saunders.
Grove S. K., Burns N. and Gray J. (2007). Understanding Nursing Research. Missouri: Elsevier Saunders.
Grove Susan K, Burns Nancy and Gray JR. Understanding Nursing Research. Missouri: Elsevier Saunders. 2007.