TY  - JOUR
A1  - Woodring, W. P.
DO  - 10.3133/pp306e
JO  - United States Geological Survey Professional Paper
SP  - 453
EP  - 539
C1  - 306-E: 453-539
TI  - Geology and paleontology of the Canal Zone and adjacent parts of Panama: description of Tertiary mollusks (additions to gastropods, scaphopods, pelecypods: Nuculidae to Malleidae)
UR  - https://pubs.usgs.gov/pp/0306e/report.pdf
PY  - 1973
Y2  - 2026-08-07
ER  -