Hu, S. T. (1972). Elements of general topology. Holden-Day.
Chicago Edition CitationHu, S. T. Elements of General Topology. San Francisco: Holden-Day, 1972.
Cita MLAHu, S. T. Elements of General Topology. Holden-Day, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.