Autor
Birdsall, Nancy
1
Goldenberg, E. Paul (Ernest Paul)
1
Grant, Nigel, 1932-
1
Hill, M. Anne
1
Inter-American Development Bank
1
Johns Hopkins University. Institute for the Academic Advancement of Youth
1
Johns Hopkins University. Study of Exceptional Talent
1
King, Elizabeth M.
1
Sabot, R. H.
1
Searle, Ronald, 1920-
1
Webb, Kaye
1