Παραπομπή APA

Sdobinikov, Y., & Yuri Sdobnikov. (1973). Karl Marx (1st.). Progress Publishers.

Παραπομπή Chicago Style

Sdobinikov, Yuri, και Yuri Sdobnikov. Karl Marx. 1st. Moscow: Progress Publishers, 1973.

Παραπομπή MLA

Sdobinikov, Yuri, και Yuri Sdobnikov. Karl Marx. 1st. Progress Publishers, 1973.