| Title / Condition | Seller | Highlights | Price |
|---|---|---|---|
| Child's Conception of Number Piaget, Jean / Used - Hardcover | GreatBookPrices | As new | $692.52 |
| Child's Conception of Number Piaget, Jean / Used - Hardcover | GreatBookPricesUK | As new | $687.23 |
| The Child's Conception of Number (Jean Piaget Selected Works, Volume 2) PIAGET, JEAN / Used - Hardcover | Green Ink Booksellers | $137.45 | |
| The Child's Conception of Number Piaget, Jean / Used - Hardcover | PsychoBabel & Skoob Books | $67.35 | |
| The Child's Conception of Number Piaget, Jean / Used - Hardcover | Bookcase | 1st Edition | $54.98 |
| The Child's Conception of Number Piaget, J. / Used - Hardcover | Anybook.com | Ex-library Stock photo | $51.59 |