APA-čujuhus (7. p.)
COHEN, P., & SAS, A. (1993). TEN YEARS OF COCAINE. A FOLLOP-UP STUDY OF 64 COCAINE USERS IN AMSTERDAM. UNIVERSITY OF AMSTERDAM.
Chicago-čujuhus (17. p.)
COHEN, P., juo A. SAS. TEN YEARS OF COCAINE. A FOLLOP-UP STUDY OF 64 COCAINE USERS IN AMSTERDAM. AMSTERDAM: UNIVERSITY OF AMSTERDAM, 1993.
MLA-čujuhus (9. p.)
COHEN, P., juo A. SAS. TEN YEARS OF COCAINE. A FOLLOP-UP STUDY OF 64 COCAINE USERS IN AMSTERDAM. UNIVERSITY OF AMSTERDAM, 1993.
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