Gettle, K. E. (1970). The determination and comparison of the teacher's verbal behavior involved in the traditional and Maryland Plan approaches of teaching industrial arts in selected eighth grade classes of Montgomery County, Maryland, during the school year 1969-1970. [publisher not identified].
Chicago Style (17th ed.) CitationGettle, Karl Eugene. The Determination and Comparison of the Teacher's Verbal Behavior Involved in the Traditional and Maryland Plan Approaches of Teaching Industrial Arts in Selected Eighth Grade Classes of Montgomery County, Maryland, During the School Year 1969-1970. [Place of publication not identified]: [publisher not identified], 1970.
MLA (9th ed.) CitationGettle, Karl Eugene. The Determination and Comparison of the Teacher's Verbal Behavior Involved in the Traditional and Maryland Plan Approaches of Teaching Industrial Arts in Selected Eighth Grade Classes of Montgomery County, Maryland, During the School Year 1969-1970. [publisher not identified], 1970.