TY - BOOK AU - Polit,Denise F. AU - Beck,Cheryl Tatano,1 TI - Essentials of nursing research : : appraising evidence for nusing practice / SN - 9789351298335 U1 - 610.73 PY - 2018/// CY - New Delhi PB - CBS Publisher KW - Nursing KW - Nursing research ER -