MLA

Aksakov, S. T. (Sergeĭ Timofeevich), 1791-1859. Polnoe sobranīe sochinenīĭ. t.6. 1886.. https://collections.library.yale.edu/catalog/30027500.

APA, 6th edition

Aksakov, S. T. (Sergeĭ Timofeevich), 1791-1859. (["t.6"])(1886.)[Polnoe sobranīe sochinenīĭ]. https://collections.library.yale.edu/catalog/30027500.