Hocking, J. G., & Young, G. S. (1961). Topology. Addison-Wesley.
Cita Chicago (17th ed.)Hocking, John Gilbert, i Gail S. Young. Topology. Reading: Addison-Wesley, 1961.
Cita MLA (9th ed.)Hocking, John Gilbert, i Gail S. Young. Topology. Addison-Wesley, 1961.
Atenció: Aquestes cites poden no estar 100% correctes.