Cita APA

Steenrod, N. E., & Epstein, D. B. A. (1962). Cohomology operations. Princeton University Press.

Citación estilo Chicago

Steenrod, Norman Earl, and D. B. A. Epstein. Cohomology Operations. Princeton, New Jersey: Princeton University Press, 1962.

Cita MLA

Steenrod, Norman Earl, and D. B. A. Epstein. Cohomology Operations. Princeton, New Jersey: Princeton University Press, 1962.