@book {846, title = {American seashells}, year = {1974}, pages = {1-663}, publisher = {Van Nostrand Reinhold}, organization = {Van Nostrand Reinhold}, edition = {2nd}, address = {New York-Cincinnati-Toronto-London-Melbourne}, keywords = {Recent, USA}, author = {Abbott, R.T.} } @book {848, title = {American seashells}, year = {1954}, pages = {1-541}, publisher = {Van Nostrand}, organization = {Van Nostrand}, address = {London}, keywords = {Recent, USA}, author = {Abbott, R.T.} }