Croom Fred H Basic concepts of algebraic topology - New York Springer-Verlag 1978 - x,177p. cm. - Undergraduate texts in mathematics . Appendix 1-3, 155-168p. ISBN: 3540902880 (hbd) Standard No.: 13229 Source: Textual Subjects--Topical Terms: Mathematics Dewey Class. No.: B2-316, L8-;1