@book{3492,
	author = {Rosenstock, Linda.(Editor)},
	title = {Textbook of clinical occupational and environmental medicine },
	publisher = {Saunders ,},
	year = {1994 .},
	address = {Philadelphia :},
	url = {https://books.google.com.pk/books?id=QjhsAAAAMAAJ&q=0721634826&dq=0721634826&hl=en&sa=X&redir_esc=y}
}