U. S. Department of health, education, and walfars. (1972). Manual para instructores de taller. Trillas.
Cita Chicago Style (17a ed.)U. S. Department of health, education, and walfars. Manual Para Instructores De Taller. México: Trillas, 1972.
Cita MLA (8a ed.)U. S. Department of health, education, and walfars. Manual Para Instructores De Taller. Trillas, 1972.
Precaución: Estas citas no son 100% exactas.