Author
Pilegard, Virginia Walton.
ImprintGretna, LA : Pelican, c2001.
Description1 v. (unpaged) : col. ill.
Abstract:A young Chinese boy helps his father count the warlord's vast treasures by using beads threaded on a branch. Includes a brief history of the abacus and instructions for making one.
ISBN:1565548639 (trade)