Cita APA (7th ed.)
BELL, R., JOHNSTON, L., & WECHSLER, H. (1997). CORRELATES OF COLLEGE STUDENT MARIJUANA USE: RESULTS OF A US NATIONAL SURVEY.
Cita Chicago (17th ed.)
BELL, R., L.D JOHNSTON, i H. WECHSLER. CORRELATES OF COLLEGE STUDENT MARIJUANA USE: RESULTS OF A US NATIONAL SURVEY. 1997.
Cita MLA (9th ed.)
BELL, R., et al. CORRELATES OF COLLEGE STUDENT MARIJUANA USE: RESULTS OF A US NATIONAL SURVEY. 1997.
Atenció: Aquestes cites poden no estar 100% correctes.