APA
Christensen K., Levinson D., . (2003). Encyclopedia of community. Thousand Oaks, Calif: Sage Publications.
Chicago
Christensen Karen, Levinson David, . 2003. Encyclopedia of community. Thousand Oaks, Calif: Sage Publications.
Harvard
Christensen K., Levinson D., . (2003). Encyclopedia of community. Thousand Oaks, Calif: Sage Publications.
MLA
Christensen Karen, Levinson David, . Encyclopedia of community. Thousand Oaks, Calif: Sage Publications. 2003.