Henrik Ibsen (1912). “- Hedda Gabler. The Master Builder. From Ibsen's Workshop. v.2- Brand. Peer Gynt. v.3- Emperor & Galilean. A Doll's House. Ghosts. v.4- Little Eyolf. John Gabriel Borkman. When We Dead Awaken. The Wild Duck. v.5- Lady Inger of Ostrat. The feast of Solhoug. Love's Comedy. The Vikings at Helgeland. The Pretenders. v.6- The League of Youth. Pillars of Society. Rosenersholm. The Lady from the Sea”
Thomas Robert Malthus “An Essay on the Principle of Population, Or, a View of Its Past and Present Effects on Human Happiness: With an Inquiry Into Our Prospects Respecting the Future Removal Or Mitigation of the Evils which it Occasions”, Cambridge University Press