Arnold, B. H. (1963). Intuitive concepts in elementary topology.
Citación estilo ChicagoArnold, B H. Intuitive Concepts in Elementary Topology. Prentice-Hall Inc., Englewood Cliffs, New Jersey, 1963.
Cita MLAArnold, B H. Intuitive Concepts in Elementary Topology. 1963.
Warning: These citations may not always be 100% accurate.