Ospa i ospoprivivanīe. v.1
MLA
Gubert, Vladislav, and Henry Barton Jacobs. Ospa I Ospoprivivanīe. I︠U︡bileĭnoe izd. S.-Peterburg: Tip. P.P. Soĭkina, 1896
APA, 7th edition
Gubert, V., & Jacobs, H. Barton. (1896). Ospa i ospoprivivanīe. I︠U︡bileĭnoe izd. S.-Peterburg: Tip. P.P. Soĭkina
Chicago, 17th edition
Gubert, Vladislav, and Henry Barton Jacobs. Ospa i ospoprivivanīe. I︠U︡bileĭnoe izd. S.-Peterburg: Tip. P.P. Soĭkina, 1896