Citazione Stile APA (7a Edizione)
Pennington, R. C. (1939). Speech in the teaching profession: A study of the professional requirements and the quality of the speech of three groups of teachers.
Citazione stile Chigago Style (17a edizione)
Pennington, R. Corbin. Speech in the Teaching Profession: A Study of the Professional Requirements and the Quality of the Speech of Three Groups of Teachers. New York, 1939.
Citatione MLA (9a ed.)
Pennington, R. Corbin. Speech in the Teaching Profession: A Study of the Professional Requirements and the Quality of the Speech of Three Groups of Teachers. 1939.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.