- Author: John Allan, John Butterworth, Myrtle Langley
- Language: Czech
- Year: 1993
- Author: John Allan, John Butterworth, Myrtle Langley
- Language: Czech
- Year: 1993
- Author: Myrtle Langley
- Language: English
- Year: 2012
- Author: Myrtle Langley
- Language: English
- Year: 2005