Rainey's Improved Abacus: An Explanatory Treatise On the Theory and Practice of Arithmetic and Mensuration ; in Which the General Principles Involved ... by Numerous Analytic and Abbreviated

by Thomas Rainey Paperback details (USA). (see also: Leather Bound) ISBN: 978-1-144-28533-1 ISBN-10: 1-144-28533-X Nabu Press · 2010