TY  - BOOK
AU  - Spangles, Paul J.
AU  - Perkins, Philip D.
TI  - A revision of the neotropical aquatic beetle genus Stenhelmoides (Coleoptera: Elmidae)
T2  - Smithsonian contributions to zoology
PY  - 1989///
CY  - Washington
PB  - Smithsonian Institution
KW  - Escarabajos
N1  - D48-187
ER  -