Tschernyschewski, N. G. (1980). Was tun? Aufbau-Verlag.
Citazione stile Chigago Style (17a edizione)Tschernyschewski, Nikolai Gawrilowitsch. Was Tun? Berlin: Aufbau-Verlag, 1980.
Citatione MLA (8a ed.)Tschernyschewski, Nikolai Gawrilowitsch. Was Tun? Aufbau-Verlag, 1980.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.