10 books • 5 series
The Nautilus, Vol. 89: A Quarterly Devoted to Malacology and the Interests of Conchologists; January 31, 1975 (Classic Reprint)
Seashells of the World (Golden Guides (Pb)) (Golden Guide from St. Martin's Press)
American Nature Guide
American Nature Guide to Astronomy
Shells
Kingdom of the Seashell
Collectible Shells of Southeastern United States, Bahamas, and the Caribbean
Seashells of World
Collectible Florida Shells
Seashells of North America (Golden Field Guides) (Golden Field Guide from St. Martin's Press) (Science Nature Guides)