Sperberg, C. M. (1979). Approaching Mother Courage: Or, Who's afraid of Bertolt Bn. Humanities Honors Program, Stanford University.
Citazione stile Chigago Style (17a edizione)Sperberg, Christopher Michael. Approaching Mother Courage: Or, Who's Afraid of Bertolt Bn. Stanford, Calif: Humanities Honors Program, Stanford University, 1979.
Citatione MLA (9a ed.)Sperberg, Christopher Michael. Approaching Mother Courage: Or, Who's Afraid of Bertolt Bn. Humanities Honors Program, Stanford University, 1979.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.