Kitson Clark, G. (1957). The art of lecturing: Some practical suggestions. Heffer.
Citazione stile Chigago Style (17a edizione)Kitson Clark, G. The Art of Lecturing: Some Practical Suggestions. Cambridge.: Heffer, 1957.
Citatione MLA (8a ed.)Kitson Clark, G. The Art of Lecturing: Some Practical Suggestions. Heffer, 1957.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.