APA-ийн эшлэл(7 дахь хэвлэлт)

(2000). Students Who Reported it Would be Easy to Get Drugs: 1992-98. U.S. Department of Education.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Students Who Reported It Would Be Easy to Get Drugs: 1992-98. U.S. Department of Education, 2000.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Students Who Reported It Would Be Easy to Get Drugs: 1992-98. U.S. Department of Education, 2000.

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