Petrova, Z. P., & Ognev, V. A. (2016). Kharkiv medical historian Petrov P. T. (the 120th anniversary).
Chicago Style (17th ed.) CitationPetrova, Z. P., and V. A. Ognev. Kharkiv Medical Historian Petrov P. T. (the 120th Anniversary). 2016.
MLA (8th ed.) CitationPetrova, Z. P., and V. A. Ognev. Kharkiv Medical Historian Petrov P. T. (the 120th Anniversary). 2016.
Warning: These citations may not always be 100% accurate.