APA
Federal Centre for Health Education [FCHE], . (1998). Ecstasy : use and prevention : empirical research results and guidelines : documentation of FCHE status seminar held in Bad Honnef from 15 to 17 September 1997. Cologne: FCHE.
Chicago
Federal Centre for Health Education [FCHE], . 1998. Ecstasy : use and prevention : empirical research results and guidelines : documentation of FCHE status seminar held in Bad Honnef from 15 to 17 September 1997. Cologne: FCHE.
Harvard
Federal Centre for Health Education [FCHE], . (1998). Ecstasy : use and prevention : empirical research results and guidelines : documentation of FCHE status seminar held in Bad Honnef from 15 to 17 September 1997. Cologne: FCHE.
MLA
Federal Centre for Health Education [FCHE], . Ecstasy : use and prevention : empirical research results and guidelines : documentation of FCHE status seminar held in Bad Honnef from 15 to 17 September 1997. Cologne: FCHE. 1998.