por Terman, Lewis Madison, 1877-1956 [autor].
por Gesell, Arnold, 1880-1961 [autor] | Reca, Telma [editor] | Fabricant, Luis [traductor] | Loedel, Eduardo [traductor] | Bernstein, Jaime [compilador] | Gesell, Arnold, 1880-1961. First five years of live.