| − | "Crack is a smokeable and highly addictive [[cocaine]] concentrate, created by cooking powder cocaine until it hardens into pellets ..." [http://www.city-journal.org/2008/18_2_criminal_justice_system.htm] | + | "'''Crack''' is a smokeable and highly addictive [[cocaine]] concentrate, created by cooking powder cocaine until it hardens into pellets ..." <ref>http://www.city-journal.org/2008/18_2_criminal_justice_system.htm</ref> |