Gubarev, V. S. (1973). Ot kopernika do "Kopernika". Politizdat.
Chicago Style (17th ed.) CitationGubarev, Vladimir Stepanovič. Ot Kopernika Do "Kopernika". Moskva: Politizdat, 1973.
MLA (9th ed.) CitationGubarev, Vladimir Stepanovič. Ot Kopernika Do "Kopernika". Politizdat, 1973.
Warning: These citations may not always be 100% accurate.