Description: Computational estimation/

Main Author:	Reys, Robert E.
Format:	Book
Language:	English
Published:	[Palo Alto, Calif.]: Dale Seymour Publications, [c1987]
Subjects:	Arithmetic > Study and teaching

Physical Description:	3 v. : ill. ; 28 cm.
ISBN:	0866513248 0866513108 0866513094 0866513116