Walker, B. L. (1993). Drug prevention materials catalog: For counselors working with parents; with special sections for minority groups. Learning Publ.
Chicago-Zitierstil (17. Ausg.)Walker, Bonnie L. Drug Prevention Materials Catalog: For Counselors Working with Parents; with Special Sections for Minority Groups. Holmes Beach, Fla: Learning Publ, 1993.
MLA-Zitierstil (8. Ausg.)Walker, Bonnie L. Drug Prevention Materials Catalog: For Counselors Working with Parents; with Special Sections for Minority Groups. Learning Publ, 1993.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.