APA

Hu S., . (1959). Honotopy theory. New York: Academic Press.

Chicago

Hu Sze-Tsen, . 1959. Honotopy theory. New York: Academic Press.

Harvard

Hu S., . (1959). Honotopy theory. New York: Academic Press.

MLA

Hu Sze-Tsen, . Honotopy theory. New York: Academic Press. 1959.