Croom, F. H. (1978). Basic concepts of algebraic topology. Springer-Verlag.
Dyfyniad Arddull ChicagoCroom, Fred H. Basic Concepts of Algebraic Topology. New York: Springer-Verlag, 1978.
Dyfyniad MLACroom, Fred H. Basic Concepts of Algebraic Topology. Springer-Verlag, 1978.
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