MLA

Russia. Glavnyĭ shtab. Voenno-topograficheskïĭ otdi︠e︡l. Zapiski Voenno-topograficheskïĭ otdi︠e︡la Glavnago shtaba ... 1842 / ch.7. ch.7 / 1842. 1837-. https://collections.library.yale.edu/catalog/31008268.

APA, 6th edition

Russia. Glavnyĭ shtab. Voenno-topograficheskïĭ otdi︠e︡l. (["ch.7 / 1842"])(1837-)[Zapiski Voenno-topograficheskïĭ otdi︠e︡la Glavnago shtaba ... 1842 / ch.7]. https://collections.library.yale.edu/catalog/31008268.