Incoming Resources
- Rocks, hard, soft, smooth, and rough, by Natalie M. Rosinsky ; illustration by Matthew John
- Eyewitness rocks & minerals, written by Dr. R.F. Symes
- Rocks & minerals, Michael Burgan
- Rock & fossil hunter, by Ben Morgan ; US Consultant, Richard H. Efthim, Naturalist Center Manager at the National Museum of Natural History, Smithsonian Institution ; UK Consultant, Dr. Dougals Palmer