@book{1408,
	author = {Alligood, Martha Raile  and Alligood, Martha Raile,(editor)},
	title = {Nursing theorists and their work },
	publisher = {Elsevier,},
	year = {2014.},
	address = {St. Louis:},
	edition = {8 ed.},
	url = {https://books.google.com.pk/books?id=WdRkPwAACAAJ&dq=9780323091947&hl=en&sa=X&ved=2ahUKEwiLi_368Y31AhXG1qQKHcGdBqkQ6AF6BAgKEAI}
}