APA (7th ed.) Citation

Moffat Barbara, Johnson Joy L, & Boyd Susan. (2008). Opportunities to learn and barriers to change: Crack cocaine use in the Downtown Eastside of Vancouver. BMC.

Chicago Style (17th ed.) Citation

Moffat Barbara, Johnson Joy L, and Boyd Susan. Opportunities to Learn and Barriers to Change: Crack Cocaine Use in the Downtown Eastside of Vancouver. BMC, 2008.

MLA (9th ed.) Citation

Moffat Barbara, et al. Opportunities to Learn and Barriers to Change: Crack Cocaine Use in the Downtown Eastside of Vancouver. BMC, 2008.

Warning: These citations may not always be 100% accurate.