APA (7th ed.) Citation

Hilton, P. J. (1961). An introduction to homotopy theory (Reprint.). Cambridge Univ. Press.

Chicago Style (17th ed.) Citation

Hilton, Peter John. An Introduction to Homotopy Theory. Reprint. Cambridge: Cambridge Univ. Press, 1961.

MLA (9th ed.) Citation

Hilton, Peter John. An Introduction to Homotopy Theory. Reprint. Cambridge Univ. Press, 1961.

Warning: These citations may not always be 100% accurate.