Shells — Juvenile literature — Audiobooks
Let's Collect Rocks and Shells
by Shell Union Oil Corporation
Rudiments of Conchology Intended as a familiar introduction to the science.
by Mary Anne Venning
The Book of Shells Containing the Classes Mollusca, Conchifera, Cirrhipeda, Annulata, and Crustacea
by Society for Promoting Christian Knowledge (Great Britain). Committee of General Literature and Education