APA (7th ed.) Citation
NAGEL, L., & ET AL. STUDENTS' SELF-REPORTED SUBSTANCE USE BY GRADE LEVEL AND GENDER.
Chicago Style (17th ed.) Citation
NAGEL, L., and ET AL. STUDENTS' SELF-REPORTED SUBSTANCE USE BY GRADE LEVEL AND GENDER.
MLA (9th ed.) Citation
NAGEL, L., and ET AL. STUDENTS' SELF-REPORTED SUBSTANCE USE BY GRADE LEVEL AND GENDER.
Warning: These citations may not always be 100% accurate.