(2011). Ultrafilters and topologies on groups Yevhen G. Zelenyuk. [electronic resource].
Chicago Style (17th ed.) CitationUltrafilters and Topologies on Groups Yevhen G. Zelenyuk. [electronic Resource]. 2011.
MLA引文Ultrafilters and Topologies on Groups Yevhen G. Zelenyuk. [electronic Resource]. 2011.
警告:這些引文格式不一定是100%准確.