Lockley, P. (1995). Counselling heroin and other drug users. Free Association Books.
Chicago Style (17th ed.) CitationLockley, Paul. Counselling Heroin and Other Drug Users. London [u.a.]: Free Association Books, 1995.
MLA (9th ed.) CitationLockley, Paul. Counselling Heroin and Other Drug Users. Free Association Books, 1995.
Warning: These citations may not always be 100% accurate.