Supervisory behavior in education /

gan Harris, Ben M.
Cyhoeddwyd 1975

In-service education for staff development /

gan Harris, Ben M.
Cyhoeddwyd 1989

Developmental teacher evaluation /

gan Harris, Ben M.
Cyhoeddwyd 1986

Personnel administration in education: leadership for instructional improvement /

Cyhoeddwyd 1979

Personnel administration in education : leadership for instructional improvement /

Cyhoeddwyd 1992