Alcalay, Valeria
Bucureşti
Editura Didactică şi Pedagogică
1969
Leviţchi, Leon
Popovici-Pamfil, Liliana
Tomalin, Barry
1992
Galea, Ileana
Cluj
Echinox
1993
9739114156
[Bucureşti]
Programmed Instruction Language Learning (P.I.L.L.)
9739505210