APA
Warburton H., Turnbull P. J. & Hough M. (2005). Occasional and controlled heroin use : not a problem?. York: Joseph Rowntree Foundation.
Chicago
Warburton Hamish, Turnbull Paul J and Hough Mike. 2005. Occasional and controlled heroin use : not a problem?. York: Joseph Rowntree Foundation.
Harvard
Warburton H., Turnbull P. J. and Hough M. (2005). Occasional and controlled heroin use : not a problem?. York: Joseph Rowntree Foundation.
MLA
Warburton Hamish, Turnbull Paul J and Hough Mike. Occasional and controlled heroin use : not a problem?. York: Joseph Rowntree Foundation. 2005.
BOEKEN/BROCHURES