Gaya APA

Richardson, , L, M, ., Young, , M, E, . (2007). Early child development from measurement to action . : The World Bank.Washington, D.C..

Gaya MLA

Richardson, , Linda, M., ., Young, , Mary, Eming, . "Early child development from measurement to action". : The World Bank.Washington, D.C., 2007. Koleksi World Bank.