APA (7th ed.) Citation

Hu, S. (1971). Homotopy theory (5. print.). Acad. Press.

Chicago Style (17th ed.) Citation

Hu, Sze-Tsen. Homotopy Theory. 5. print. New York u.a: Acad. Press, 1971.

MLA (9th ed.) Citation

Hu, Sze-Tsen. Homotopy Theory. 5. print. Acad. Press, 1971.