Drake, D. F. (1980). DACUM identification and verification of essential competencies for supervisors of vocational education in Pennsylvania. [publisher not identified].
Chicago Style (17th ed.) CitationDrake, Donald F. DACUM Identification and Verification of Essential Competencies for Supervisors of Vocational Education in Pennsylvania. [Place of publication not identified]: [publisher not identified], 1980.
MLA (9th ed.) CitationDrake, Donald F. DACUM Identification and Verification of Essential Competencies for Supervisors of Vocational Education in Pennsylvania. [publisher not identified], 1980.
Warning: These citations may not always be 100% accurate.