TY  - RPRT
TI  - Use of stable isotope ratios to discriminate dietary components of free-ranging animals: An example with Chesapeake Bay canvasbacks
AU  - G.M. Haramis
AU  - Dennis G. Jorde
AU  - P. N. Klein
AU  - S.A. Macko
AU  - B.S. Walker
PY  - 1993
UR  - https://pubs.usgs.gov/publication/5222673
ID  - 5222673
ER  -