TY  - RPRT
TI  - An evaluation of bone growth- layer counts as an age-determination technique in Florida manatees
AU  - M. Marmontel
AU  - T. J. O'Shea
AU  - S.R. Humphrey
PY  - 1990
UR  - https://pubs.usgs.gov/publication/96247
ID  - 96247
ER  -