APA Edition Citation

Alo, R. A., & Shapiro, H. L. (1974). Normal topological spaces.

Chicago Edition Citation

Alo, Richard A., and Harvey L. Shapiro. Normal Topological Spaces. Cambridge University Press, Cambridge, 1974.

MLA Edition Citation

Alo, Richard A., and Harvey L. Shapiro. Normal Topological Spaces. 1974.