TY  - BOOK
AU  - Hershler,Robert
AU  - Landye,J.Jerry
TI  - Arizona Hydrobiidae: (prosobranchial rissoacea) 
PY  - 1988///
CY  - Washington
PB  - Smithsonian Institution Press
KW  - Pyrgulopsis
KW  - Arizona
KW  - Classification
KW  - Tryonia
KW  - Mollusks
ER  -