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Incoming Resources
- Rocks & minerals, written by Dr. R.F. Symes
- Rocks & minerals, written by R.F. Symes and the staff of the Natural History Museum, London ; [special photography, Colin Keates and Andreas Einsiedel]
- Rocks & minerals, written by Dr. R.F. Symes and the staff of the Natural History Museum, London
- Eyewitness rocks & minerals, written by R.F. Symes and the staff of the Natural History Museum, London ; [special photography, Colin Keates and Andreas Einsiedel]
- Crystal & gem, written by R.F. Symes and R.R. Harding
- Crystal & gem /, written by R.F. Symes and R.R. Harding ; [special photography, Colin Keates]
- Rocas y minerales, por R.F. Symes en colaboracion con el Natural History Museum, Londres ; [traducido por Catherine Tussy]
- Crystal & gem, written by R.F. Symes and R.R. Harding ; photographs by Colin Keates
- Eyewitness crystal & gem, written by R.F. Symes and R.R. Harding
- Eyewitness crystal & gem, written by Dr. R.F. Symes and Dr. R.R. Harding