MLA

Grigoryeva, et al. Elderly Population In Modern Russia. Springer International Publishing, 2019.

APA

Grigoryeva, G., Dmitrieva, A., Sergeyeva, O., & Vidiasova, L. (2019). Elderly Population in Modern Russia. Springer International Publishing.

Chicago

Grigoryeva, Alexandra Dmitrieva, Olga Sergeyeva, and Lyudmila Vidiasova. Elderly Population In Modern Russia. : Springer International Publishing, 2019.