Print version: International Conference on Algebraic Topology. Algebraic topology : Oaxtepec 1991 :proceedings of an International Conference on Algebraic Topology, July 4-11, 1991 with support from the National Science Foundation and the Consejo Nacional de Ciencia y Technologia (Mexico). Providence, Rhode Island : American Mathematical Society, [1993] xviii, 481 pages ; 26 cm. Contemporary mathematics ; 146 ISBN 9780821851623