Obrazovanie i Nauka | Russian State Vocational Pedagogical University. Cambridge University Press.
Chicago Style (17th ed.) ZitazioaObrazovanie I Nauka | Russian State Vocational Pedagogical University. Cambridge University Press.
MLA (9th ed.) ZitazioaObrazovanie I Nauka | Russian State Vocational Pedagogical University. Cambridge University Press.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.