With sister Minna's help, Memo the mouse counts up all his toys, backwards and forwards.
- ISBN10 0694001058
- ISBN13 9780694001057
- Publish Date 1 September 1984 (first published 1 January 1984)
- Publish Status Out of Print
- Out of Print 22 March 2011
- Publish Country US
- Imprint HarperCollins Publishers
- Format Hardcover
- Language English