@book{3690,
	author = {HAROLD E.DOWEIKO},
	title = {CONCEPT OF CHEMICAL DEPENDENCY},
	publisher = {BROOKS/COLE},
	year = {2006},
	address = {UK},
	url = {https://books.google.com.pk/books?id=Ql93cgAACAAJ&dq=CONCEPT+OF+CHEMICAL+DEPENDENCY&hl=en&sa=X&redir_esc=y}
}