6 1 50 Denise F. Polit Primary Author Cheryl Tatano Beck Primary Author mixed material 9781496300232 China Wolters Kluwer Health 2017 Nursing_research.png.png Principles and Methods 7th Edition Denise F. Polit Primary Author Cheryl Tatano Beck Primary Author mixed material Lippincott William and wilkinds nursing_research_principles_and_methods-min.PNG.PNG Denise F. Polit Primary Author Cheryl Tatano Beck Primary Author mixed material 9781605477084 China Lippincott Williams & Wilkins 2012 Nursing_Research_-_Generating_and_assessing_evidence_for_nursing_practice._Edition_9.jpg.jpg Denise F. Polit Primary Author mixed material Nursing_research_-_Principles_and_methods._Edition_7.jpg.jpg Denise F. Polit Primary Author Cheryl Tatano Beck Primary Author Christina C. Burns Editor mixed material 9781496351296 USA Wolters Kluwer Health 2018 Essentials_of_nursing_research.jpg.jpg Denise F. Polit Primary Author Cheryl Tatano Beck Primary Author mixed material 9780781781534 Cina Wolters Kluwer Health 2010 Essentials_of_nursing_research_-_Appraising_evidence_for_nursing_practice_Edisi_7.jpg.jpg