Whitehead, George W. 1918- Elements of homotopy theory / George W. Whitehead. - New York : Springer-Verlag, c1978. - xxi, 744 p. : ill. ; 25 cm. - Graduate texts in mathematics ; 61 . Includes index. Bibliography: p. 728-735. ISBN: 0387903364 LCCN: 78015029 Subjects--Topical Terms: Homotopy theory. LC Class. No.: QA612.7 / .W45 Dewey Class. No.: 514.24 / WHI