APA

Dumas A., . (1923). Twenty years after. London: Dent and Sons.

Chicago

Dumas Alexandre, . 1923. Twenty years after. London: Dent and Sons.

Harvard

Dumas A., . (1923). Twenty years after. London: Dent and Sons.

MLA

Dumas Alexandre, . Twenty years after. London: Dent and Sons. 1923.