@book{1456,
	author = {Schaefer, Richard T.},
	title = {Sociology :},
	publisher = {Mc Graw hill,},
	year = {2015},
	address = {New York:},
	edition = {11th edition.},
	url = {https://books.google.com.pk/books?id=DDPGnAEACAAJ&dq=9780078027109&hl=en&sa=X&redir_esc=y}
}