APA (7th ed.) Citation
DEREN, S., & ET AL. (1999). HIV SEROSTATUS AND RISK BEHAVIORS IN A MULTISITE SAMPLE OF DRUG USERS.
Chicago Style (17th ed.) Citation
DEREN, S., and ET AL. HIV SEROSTATUS AND RISK BEHAVIORS IN A MULTISITE SAMPLE OF DRUG USERS. 1999.
MLA (9th ed.) Citation
DEREN, S., and ET AL. HIV SEROSTATUS AND RISK BEHAVIORS IN A MULTISITE SAMPLE OF DRUG USERS. 1999.
Warning: These citations may not always be 100% accurate.