APA-ийн эшлэл(7 дахь хэвлэлт)

Gardner, F., Montgomery, P., Fisher, & H. (2008). Opportunities Provision for Preventing Youth Gang Involvement For Children and Young People (7-16).

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Gardner, F., P. Montgomery, Fisher, ба H. Opportunities Provision for Preventing Youth Gang Involvement For Children and Young People (7-16). 2008.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Gardner, F., et al. Opportunities Provision for Preventing Youth Gang Involvement For Children and Young People (7-16). 2008.