Helping children learn mathematics /

• 作者：Robert E. Reys, Marilyn N. Suydam, Mary Montgomery Lindquist
• 出版者：Allyn and Bacon
• 出版地：Boston :
• 語文：英語
• ISBN/ISSN/ISRC：0205131425 (pbk)
• 作者：ReysRobert E;Suydam Marilyn N;Lindquist Mary Montgomery
• 索書號：372.7