Mathematics of choice or how to count without counting / [electronic resource] :
by Ivan Niven.
- Washington, D.C. : Mathematical Association of America, 1965.
- xi, 202 p.
- Anneli Lax New Mathematical Library ; 15 .
Electronic reproduction. Palo Alto, Calif. : ebrary, 2013. Available via World Wide Web. Access may be limited to ebrary affiliated libraries.