Shatalov, N. N. (2019). Outstanding oil geologist academician Vladimir Borisovich Porfiriev (On the 120th Anniversary of the His Birthday).
Чикаго стиль цитування (17-те видання)Shatalov, N. N. Outstanding Oil Geologist Academician Vladimir Borisovich Porfiriev (On the 120th Anniversary of the His Birthday). 2019.
Стиль цитування MLA (8-ме видання)Shatalov, N. N. Outstanding Oil Geologist Academician Vladimir Borisovich Porfiriev (On the 120th Anniversary of the His Birthday). 2019.
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