Autores
Bayard, Robert T. ; Bayard, Jean
2
Placking de Salcedo, Dorotea
2
Sordo, Pilar
2
Bernstein, Jaime (pról.)
1
Duquesne, Jacques
1
Gesell, Arnold
1
Hilgar, Ernest, R.
1
Horney, Karen
1
Jersild, Artyhur T.
1
Kelman, Harold (intr.)
1
Rodriguez Tomé, Héctor
1
Stone, L. Joseph; Church, Joseph
1
Urbano, Claudio; Yuni, José Alberto
1
Yela, Mariano (pról.)
1
Zazzo, René (pref.)
1