Παραπομπή APA

Naimpally, S. A., & Warrack, B. D. (1970). Proximity spaces. University Press.

Παραπομπή Chicago Style

Naimpally, S. A., και B. D. Warrack. Proximity Spaces. Cambridge [Eng.]: University Press, 1970.

Παραπομπή MLA

Naimpally, S. A., και B. D. Warrack. Proximity Spaces. University Press, 1970.