World Health Organization. (2010). CBR Guidelines. Introductory booklet. World Health Organization.
Cita Chicago (17th ed.)World Health Organization. CBR Guidelines. Introductory Booklet. Geneva: World Health Organization, 2010.
Cita MLA (8th ed.)World Health Organization. CBR Guidelines. Introductory Booklet. World Health Organization, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.