National Association of Industrial Teacher Educators & Williams, W. A. (1963). Accident prevention manual for shop teachers: A professional publication of the National Association of Industrial Teacher Educators. American Technical Society.
Cita Chicago (17th ed.)National Association of Industrial Teacher Educators i William Andrew Williams. Accident Prevention Manual for Shop Teachers: A Professional Publication of the National Association of Industrial Teacher Educators. Chicago: American Technical Society, 1963.
Cita MLA (9th ed.)National Association of Industrial Teacher Educators i William Andrew Williams. Accident Prevention Manual for Shop Teachers: A Professional Publication of the National Association of Industrial Teacher Educators. American Technical Society, 1963.