APA
National Society For The Study Of Education, .In Service Education For Teachers Supervisors And Administrators The Fifty Sixth Yearbook Of The National Society For The Study Of Education Part I. : Chicago : U. Of Chicage Press 1957.
Chicago
National Society For The Study Of Education, .In Service Education For Teachers Supervisors And Administrators The Fifty Sixth Yearbook Of The National Society For The Study Of Education Part I. : Chicago : U. Of Chicage Press 1957.
Harvard
National Society For The Study Of Education, .In Service Education For Teachers Supervisors And Administrators The Fifty Sixth Yearbook Of The National Society For The Study Of Education Part I. : Chicago : U. Of Chicage Press 1957.
MLA
National Society For The Study Of Education, .: Chicago : U. Of Chicage Press 1957. .