Theory and practice of supervision /
Gwynn, John Minor, 1897-.
Theory and practice of supervision / by J. Minor Gwynn. - New York : Dodd & Mead, 1961. - 473 p. : ill. ; 24 cm.
Includes bibliography.
School supervision.
Theory and practice of supervision / by J. Minor Gwynn. - New York : Dodd & Mead, 1961. - 473 p. : ill. ; 24 cm.
Includes bibliography.
School supervision.
