APA
"UN I. a. S. A., "UN I. a. S. A., . (1986). Selected demographic and social characteristics of the world's children and youth. New: York.
Chicago
"UN Int.Eco and Social Affairs", "UN Int.Eco and Social Affairs", . 1986. Selected demographic and social characteristics of the world's children and youth. New: York.
Harvard
"UN I. a. S. A., "UN I. a. S. A., . (1986). Selected demographic and social characteristics of the world's children and youth. New: York.
MLA
"UN Int.Eco and Social Affairs", "UN Int.Eco and Social Affairs", . Selected demographic and social characteristics of the world's children and youth. New: York. 1986.
