TY - BOOK AU - Massey,William S. TI - Algebraic topology: : an introduction / T2 - Harbrace college mathematics series SN - 0387902716 U1 - 514.2 23 PY - 1967///] CY - New York: PB - Harcourt, Brace & World, KW - Algebraic topology N1 - Includes bibliographies ER -