Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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