M.O, P., & I.Yu, N. (2005). Formation of quality of commodity coal during extraction and enrichments. General Energy Institute of the National Academy of Sciences of Ukraine.
Чикаго стиль цитування (17-те видання)M.O, Perov, та Novytskyi I.Yu. Formation of Quality of Commodity Coal During Extraction and Enrichments. General Energy Institute of the National Academy of Sciences of Ukraine, 2005.
Стиль цитування MLA (8-ме видання)M.O, Perov, та Novytskyi I.Yu. Formation of Quality of Commodity Coal During Extraction and Enrichments. General Energy Institute of the National Academy of Sciences of Ukraine, 2005.
Попередження: стилі цитування не завжди правильні на всі 100%.