APA

(1966). Guidelines for supervisors: suggested patterns of thought and practice for elementary and secondary classroom observation. Washington, D.C: N.C.E.A.

Chicago

1966. Guidelines for supervisors: suggested patterns of thought and practice for elementary and secondary classroom observation. Washington, D.C: N.C.E.A.

Harvard

(1966). Guidelines for supervisors: suggested patterns of thought and practice for elementary and secondary classroom observation. Washington, D.C: N.C.E.A.

MLA

Guidelines for supervisors: suggested patterns of thought and practice for elementary and secondary classroom observation. Washington, D.C: N.C.E.A. 1966.