APA

Yeru F. N., Nomokonova G. G. & Nadeyna L. V.Improvement velocity model usiug sonic log data. : .

Chicago

Yeru F N, Nomokonova G G and Nadeyna L V.Improvement velocity model usiug sonic log data. : .

Harvard

Yeru F. N., Nomokonova G. G. and Nadeyna L. V.Improvement velocity model usiug sonic log data. : .

MLA

Yeru F N, Nomokonova G G and Nadeyna L V.: . .