APA

Ovchinnikov I. S., Nikonova E. D. & Kobzeva N. A.To the question of environmental engineering. : .

Chicago

Ovchinnikov I S, Nikonova E D and Kobzeva N A.To the question of environmental engineering. : .

Harvard

Ovchinnikov I. S., Nikonova E. D. and Kobzeva N. A.To the question of environmental engineering. : .

MLA

Ovchinnikov I S, Nikonova E D and Kobzeva N A.: . .