(2000). Percentage of High School Seniors Using Alcohol or Drugs: 1975-98. U.S. Department of Education.
Chicago Style (17. basım) AtıfPercentage of High School Seniors Using Alcohol or Drugs: 1975-98. U.S. Department of Education, 2000.
MLA (9th ed.) AtıfPercentage of High School Seniors Using Alcohol or Drugs: 1975-98. U.S. Department of Education, 2000.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..