TY  - BOOK
AU  - Bartsch, Paul
TI  - A monograph of the American shipworms
T2  - Bulletin (United States. National Museum. Smithsonian Institution); 122
U1  - 594.1 21st ed.
PY  - 1922///
CY  - Washington
PB  - Goverment Printing Office
KW  - Shipworms
N1  - Bibliography: pp 48-60
ER  -