Jacobson, S. L. (1989). Investigation into the relationship between drug use and career maturity. UMI.
Chicago-Zitierstil (17. Ausg.)Jacobson, Susan L. Investigation into the Relationship Between Drug Use and Career Maturity. Ann Arbor, Mich: UMI, 1989.
MLA-Zitierstil (9. Ausg.)Jacobson, Susan L. Investigation into the Relationship Between Drug Use and Career Maturity. UMI, 1989.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.