A small green monster with a large nose gives birth to twin boy monsters who like to take things apart.
- ISBN10 0394847393
- ISBN13 9780394847399
- Publish Date 31 December 1979
- Publish Status Out of Print
- Out of Print 6 December 2011
- Publish Country GB
- Imprint Random House
- Edition American ed.
- Format Paperback
- Language English