Reseach methods in education / Louis Cohen and Lawrence Manion
Cohen, Louis
Reseach methods in education / Louis Cohen and Lawrence Manion - 2nd ed. - London[etc] : Croom Helm, 1985 - 383 p.
Bibliografia
0-7099-3438-6
Pedagogía
Reseach methods in education / Louis Cohen and Lawrence Manion - 2nd ed. - London[etc] : Croom Helm, 1985 - 383 p.
Bibliografia
0-7099-3438-6
Pedagogía