%0 Book %1 piaget1997csc %A Piaget, J. %D 1997 %I Routledge %K children conceptions number %T The Child's Conception of Number %U http://books.google.com/books?hl=no&lr=&id=1ET995R5VHEC&oi=fnd&pg=PA1&dq=altitittel:+number+forfatter:J+forfatter:Piaget&ots=v9XAOH0thw&sig=QGgRd8gEEIVC5JDUrndOwdv6XWM

@book{piaget1997csc, added-at = {2007-04-26T21:23:21.000+0200}, author = {Piaget, J.}, biburl = {https://www.bibsonomy.org/bibtex/286a1b67e6b713b48e978c96bf6d39797/rmosvold}, interhash = {b2a22ca9d6fee4de28cc69c6a3b104c0}, intrahash = {86a1b67e6b713b48e978c96bf6d39797}, keywords = {children conceptions number}, publisher = {Routledge}, timestamp = {2007-04-26T21:23:21.000+0200}, title = {The Child's Conception of Number}, url = {http://books.google.com/books?hl=no&lr=&id=1ET995R5VHEC&oi=fnd&pg=PA1&dq=altitittel:+number+forfatter:J+forfatter:Piaget&ots=v9XAOH0thw&sig=QGgRd8gEEIVC5JDUrndOwdv6XWM}, year = 1997 }