Kozii, Y. S., & Ishkov, V. V. (2017). Coal classification of main working seams of Pavlohrad-Petropavlivka geological and industrial district on content of toxic and potentially toxic elements.
Chicago Style (17th ed.) CitationKozii, Ye. S., and V. V. Ishkov. Coal Classification of Main Working Seams of Pavlohrad-Petropavlivka Geological and Industrial District on Content of Toxic and Potentially Toxic Elements. 2017.
MLA (8th ed.) CitationKozii, Ye. S., and V. V. Ishkov. Coal Classification of Main Working Seams of Pavlohrad-Petropavlivka Geological and Industrial District on Content of Toxic and Potentially Toxic Elements. 2017.
Warning: These citations may not always be 100% accurate.