Tolstoy's Letters.

MLA

Tolstoj, Lev Nikolaevič, and R. F Christian. Tolstoy's Letters. London: The Athlone Press, 1978.

APA

Tolstoj, L. Nikolaevič, & Christian, R. F. (1978). Tolstoy's Letters. London: The Athlone Press.

Chicago

Tolstoj, Lev Nikolaevič, Tolstoy's Letters.. Edited by R. F Christian. London: The Athlone Press, 1978.