Krishan Kumar; Author. (1997). Theory of classification (Ed.4 rev.).
Chicago Edition CitationKrishan Kumar; Author. Theory of Classification. Ed.4 rev. New Delhi, Vikas Publishing, 1997.
Cita MLAKrishan Kumar; Author. Theory of Classification. Ed.4 rev. 1997.
Atenció: Aquestes cites poden no estar 100% correctes.