Bivalve Seashells of Western North America | Santa Barbara
Bivalve Seashells of Western North America | Santa Barbara,北アメリカ西部の二枚貝 専門書「Bivalve Seashells」,Bivalve Seashells of Western South America: Paul Valentich,1 1/4 to 1 1/2,Bivalves - British Geological Survey