Cita APA (7th ed.)
UNICEF. (2001). The state world's children 2001: Early childhood.
Cita Chicago (17th ed.)
UNICEF. The State World's Children 2001: Early Childhood. 2001.
Cita MLA (9th ed.)
UNICEF. The State World's Children 2001: Early Childhood. 2001.
Atenció: Aquestes cites poden no estar 100% correctes.