TY - BOOK AU - Polit, Denise F. AU - Beck, Cheryl Tatano TI - Essentials of nursing research: appraising evidence for nursing practice SN - 0781781534 U1 - N610.73 PY - 2010/// CY - New Delhi PB - Lippincott Wiliams & Wilkins KW - Medical Sciences N1 - ISBN9780781781534 WITH CD ROM Acc. No.196866-A ER -