Cita APA (7a ed.)
LOCKLEY, P. (1996). COUNSELLING HEROIN AND OTHER DRUG USERS. FREE ASSOCIATION BOOKS.
Cita Chicago Style (17a ed.)
LOCKLEY, P. COUNSELLING HEROIN AND OTHER DRUG USERS. Londres: FREE ASSOCIATION BOOKS, 1996.
Cita MLA (9a ed.)
LOCKLEY, P. COUNSELLING HEROIN AND OTHER DRUG USERS. FREE ASSOCIATION BOOKS, 1996.
Precaución: Estas citas no son 100% exactas.