APA način citiranja (7. izdanje)
SLACK, D. (2002). NEW SURVEY SHOWS EMPLOYERS FIND PRE-EMPLOYMENT DRUG SCREENS EFFECTIVE.
Čikaški stil citiranja (17. izdanje)
SLACK, D. NEW SURVEY SHOWS EMPLOYERS FIND PRE-EMPLOYMENT DRUG SCREENS EFFECTIVE. 2002.
MLA način citiranja (9. izdanje)
SLACK, D. NEW SURVEY SHOWS EMPLOYERS FIND PRE-EMPLOYMENT DRUG SCREENS EFFECTIVE. 2002.
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