What then must we do?

MLA

Tolstoj, Lev Nikolaevič, and Aylmer Maude. What Then Must We Do?. Hartland: Green Books, 1991.

APA

Tolstoj, L. Nikolaevič, & Maude, A. (1991). What then must we do?. Hartland: Green Books.

Chicago

Tolstoj, Lev Nikolaevič, What Then Must We Do?. Translated by Aylmer Maude. Hartland: Green Books, 1991.