APA

Potylitsyn A. P., Karataev P. B. & Mkrtchyan A. C.Preface (Editorial). : .

Chicago

Potylitsyn A P, Karataev P B and Mkrtchyan A C.Preface (Editorial). : .

Harvard

Potylitsyn A. P., Karataev P. B. and Mkrtchyan A. C.Preface (Editorial). : .

MLA

Potylitsyn A P, Karataev P B and Mkrtchyan A C.: . .