Supervision : Democratic leadership in the improvement of learning
Barr A S
Supervision : Democratic leadership in the improvement of learning - 2nd - New York, USA Appleton - Century - Crofts 1938 - 879p.
Textual
Teaching
Supervision : Democratic leadership in the improvement of learning - 2nd - New York, USA Appleton - Century - Crofts 1938 - 879p.
Textual
Teaching
